Category: javascript

I’m triying to authenticate through the production build of my project. However, I found out that there’s an issue with redirect().

I initially though it was a server error on my ExpressJS backend but I checked the logs and the POST request is succesful, however, the front end is not setting up cookies as it should and thus redirect fails.

import {
  fetchurl,
  setAuthTokenOnServer,
  setUserOnServer,
} from '@/helpers/setTokenOnServer'
import { redirect } from 'next/navigation'
import FormButtons from '@/components/global/formbuttons'

const Login = async ({ params, searchParams }) => {

  const loginAccount = async (formData) => {
    'use server'
    const rawFormData = {
      email: formData.get('email'),
      password: formData.get('password')
    }

    const res = await fetchurl(`/auth/login`, 'POST', 'no-cache', rawFormData);

    if (res?.data) {
      redirect(`/auth/validatetwofactorauth/${res?.data?._id}`)
    }

    // If not success, stop
    if (!res?.success) return;
    
    await setAuthTokenOnServer(res?.token); // Sets auth cookies on server
    const loadUser = await fetchurl(`/auth/me`, 'GET', 'no-cache'); // loads user based on auth
    await setUserOnServer(loadUser?.data); // then sets some user's values into cookies
    searchParams?.returnpage ? redirect(searchParams.returnpage) : redirect(`/auth/profile`);
  }

  return (
    <form action={loginAccount}>
      <label htmlFor="email" className="form-label">
        Email
      </label>
      <input
        id="email"
        name="email"
        type="email"
        className="form-control mb-3"
        placeholder="[email protected]"
      />
      <label htmlFor="password" className="form-label">
        Password
      </label>
      <input
        id="password"
        name="password"
        type="password"
        className="form-control mb-3"
        placeholder="******"
      />
      <br />
      <FormButtons />
    </form>
  )
}

export default Login

Anyone has dealt with this before? I’d like to keep the page in the server side as much as possible.

Click here to see local vs production build examples

Thanks in advance!.

I need a RegExp to test strings that should consist of the valid whole decimal numbers including zero (0, 1, 12, 123, but not 00 or 0123) mixed with a special character (such as x) in free occurrences:

0, 1, 123, x, xx, x0, 0x, x0x, 0x0, xx123x0, x1000xx5xxx, …

I came up with the following:

new RegExp('^0?$|^((?!0)[0-9]+|x0$|0x|x+)+$')

Unfortunately, it do not work 100%, e.g. a valid string is not accepted: 0x0.

Thanks for any help!

I have this project (Project A), which has npm installed another package of mine (Project B). this package (Project B) has multiple inline CSS files which it imports as “import abc from “../../file.css?inline”

This works for this package(Project B) as standalone, and when I build my vite project(Project A) which has it (Project B) installed in it’s node_modules while it’s symlinked (npm link) it also imports it as a string in the resulting .js file it builds. However, when I install Project B as a regular NPM package, it doesn’t import the ?inline file into the resulting .js file.

Project B has the following code in it’s rollup config to make it work for it standalone:

function cssInline() {
  return {
    name: 'css-inline',
    resolveId(source) {
      if (source.endsWith('?inline')) {
        console.log('css-inline plugin resolveId:', source);
        return source;
      }
      return null;
    },
    load(id) {
      if (id.endsWith('?inline')) {
        const filePath = id.replace('?inline', '');
        const absolutePath = path.isAbsolute(filePath)
          ? filePath
          : path.resolve(process.cwd(), filePath);

        console.log('css-inline plugin load:', absolutePath);

        try {
          const css = fs.readFileSync(absolutePath, 'utf-8');
          console.log('css-inline plugin css content length:', css.length);
          return `export default ${JSON.stringify(css)}`;
        } catch (err) {
          console.error(`Error reading CSS file ${absolutePath}:`, err);
          return `export default 'test'`;
        }
      }
      return null;
    },
  };
}

While capturing image i am getting poor quality of image
My capture image code is

  private async Task CaptureImage()
  {
      Snackbar.Clear();
      Snackbar.Configuration.PositionClass = Defaults.Classes.Position.TopCenter;

      if (SavedImages.Count + selectedImagesFromSM.Count < 3)
      {
          var options = new DialogOptions
              {
                  FullWidth = true,
                  DisableBackdropClick = true,
                  Position = DialogPosition.Center
              };

          var result = await DialogService.Show<ImageCaptureDialog>("Capture Image", options).Result;

          if (!result.Cancelled)
          {
              string imageUri = result.Data.ToString();
              byte[] bytes = Convert.FromBase64String(imageUri.Split(',')[1]);

              if (bytes.Length > Constants.IMAGE_MAX_SIZE)
              {
                  Snackbar.Add($"The Captured image exceeds the maximum size limit : 20 MB.", Severity.Warning);
              }
              else
              {
                  byte[] imageStreamToBytes;

                  using (var image = SixLabors.ImageSharp.Image.Load(bytes))
                  {
                      using (MemoryStream outputStream = new MemoryStream())
                      {
                          var encoder = new SixLabors.ImageSharp.Formats.Jpeg.JpegEncoder { Quality = 100 };
                          image.Save(outputStream, encoder);

                          imageStreamToBytes = outputStream.ToArray();
                      }
                  }

                  selectedImagesFromSM.Add(new ITSImage { PartNumber = int.Parse(selectedPartNumber), Images = new List<Image> { new Image { Data = imageStreamToBytes } } });
              }

              await CheckPartNumberImageCount();
          }
      }
      else
      {
          Snackbar.Add("You can capture only 3 images.", Severity.Warning);
      }
  }

camera.js function is

async function startVideo(src) {
    try {
        const permission = await checkCameraPermission();
        if (permission === 'prompt' || permission === 'granted') {
            navigator.getUserMedia(
                { video: true, audio: false },
                function (localMediaStream) {
                    let video = document.getElementById(src);
                    video.srcObject = localMediaStream;
                    video.onloadedmetadata = function (e) {
                        video.play();
                    };
                },
                function (err) {
                    console.error('Error accessing camera:', err);
                    throw err; // Propagate the error
                }
            );
        } else {
            console.error('Camera permission denied.');
        }
    } catch (error) {
        console.error('Error starting video:', error);
    }
}

function getFrame(src, dest, dotnetHelper) {
    let video = document.getElementById(src);
    let canvas = document.getElementById(dest);

    // Check if the video and canvas elements exist before drawing the image
    if (video && canvas) {
        canvas.getContext('2d').drawImage(video, 0, 0, 150, 150);

        // Resize the image on the canvas
        let resizedCanvas = document.createElement('canvas');
        resizedCanvas.width = 200; // Set desired width
        resizedCanvas.height = 200; // Set desired height
        let ctx = resizedCanvas.getContext('2d');
        ctx.drawImage(canvas, 0, 0, resizedCanvas.width, resizedCanvas.height);

        // Convert the resized image to base64 JPEG format
        let dataUrl = resizedCanvas.toDataURL("image/jpeg");

        // Invoke the .NET method with the resized image data
        dotnetHelper.invokeMethodAsync('ProcessImage', dataUrl);
    } else {
        console.error('Video or canvas element not found.');
    }
}

I have Added the code please check where i am doing mistake

Although my camera produces good quality images, the captured images in my application appear low-quality. How can I improve the image quality?

There is exactly a same question in StackOverflow, but I found that the browser keeps updating when to fire it(different browser performs differently), also I saw someone’s comment on an answer citing MDN docs, where he says that “I don’t think this is still true”.

As per my understanding as we continue clicking links, pushstate fires for every new page load with the content and URL mapped for every page. When we press back/forward button the browser doesn’t send a request to the URL we are returning to, rather it fires a popstate event, the event has a state variable which is earlier content loaded when we first visited the URL. And hence the browser without any reloading shows the content of that particular URL. Is this the correct way to think about?

Now this site explains the popstate by stating that it fires when we navigate into the same document object as the same page or we traverse the URL already present in history stack.

To support navigation into the same document object it cites an example of going to a link having a href (# ammended) for example going from www.example.com/home to www.example.com/home#glossarys fires a popstate (mentioned in Task 2 of the site). This is true because the entire document object gets loaded (for example a long webpage) so going to specified part of the document should not trigger a document load. But I am unable to understand how popstate gets the data what it should fetch when we visit a part of the webpage. Because for that particular link containing a # pushstate has not been triggered.

Also in Task 4 of the website, it mentioned that going back from www.example.com/home#glossarys to www.example.com/home will not fire a pop state as the document object will reload. But the document object is already loaded why its going to load again.

so basically I’m learning web development on my Lenovo Legion 5 pro-Windows laptop and I’m working with javascript APIs whenever from my chrome I send a single get request by refreshing a page in that path it gets 3 to 4 requests automatically and if I was saving data in get request in mongodb then it saving multiple 3 to 4 same data at with a single refresh please help me how to get rid of this problem or you can a glitch?

please tell me some solution to get rid of this problem

Hi I’m trying to change some colors but mapbox wont do this.

I’ve searched across the internet and it seems that my code is right but changes wont take effect.
`

    map.addLayer({
        'id': 'entidades',
        'source': 'estados',
        'source-layer': 'tasasyconteos_ent_updated-86v9k0',
        'maxzoom': zoomThreshold,
        'type': 'fill',
        'paint': {
            'fill-color': ['interpolate', ['linear'],
                ['get', 'POBTOT'],
                0, '#f0f9e8',
                5000000, '#bae4bc',
                10000000, '#7bccc4',
                15000000, '#ff0000',
                25000000, '#0868ac'
            ],
            'fill-opacity': 1,
            'fill-outline-color': 'black'
        }
    }, 'road-label-simple');

I am trying to scrap the stock data from the chart of the following link : https://www.boursorama.com/cours/1rPADP/

Searching “chartData” in the dev console provides me something that looks like it :

                                            $(function() {
                                            //The amCharts "real" default configs for our charts can be found in the jQuery plugin "jquery.amcharts.js".
                                            var chart = JSON.parse('{"static":{"amChart":{"type":"serial"},"graph":{"fillAlphas":0,"fillColors":"#009de0","lineColor":"#009de0","gridColor":"#000000","fontColor":"#000000","categoryOffset":0,"chartModifier":"c-chart--height-xs"}},"data":{"amChartConfig":{"brs":{"commonField":"period","id":2068349295},"colors":["#009de0","#003883","#149e62","#f1d205"],"valueAxes":[{"title":"","position":"right","axisThickness":0,"gridThickness":1,"gridColor":"#000000","tickLength":0,"guides":[{"value":111.7,"lineColor":"#fb0189","lineAlpha":100,"lineThickness":1,"tickLength":0,"above":true}],"includeGuidesInMinMax":true,"color":"#000000"}],"categoryAxis":{"axisThickness":0,"gridThickness":0,"autoGridCount":false,"gridCount":3,"showFirstLabel":false,"showLastLabel":false,"color":"#000000","offset":0},"graphs":[{"balloonText":"[[title]] [[category]] : [[value]]","type":"line","fillAlphas":0,"fillColors":"#009de0","id":"chart-66b4681376323","commonField":"period","brsValueField":"value","lineThickness":1}],"chartCursor":{"valueBalloonsEnabled":true,"valueLineEnabled":true,"cursorAlpha":0.35,"cursorColor":"#009de0","valueLineBalloonEnabled":true,"categoryBalloonColor":"#009de0","valueLineAlpha":0.35,"valueZoomable":false,"pan":false,"zoomable":false}},"amChartData":{"chart-66b4681376323":[{"period":"09h00","value":112.9},{"period":"09h01","value":112.7},{"period":"09h02","value":112.5},{"period":"09h03","value":112.6},{"period":"09h04","value":112.7},{"period":"09h05","value":112.7},{"period":"09h06","value":112.7},{"period":"09h07","value":112.9},{"period":"09h08","value":112.8},{"period":"09h09","value":112.4},{"period":"09h10","value":112.6},{"period":"09h11","value":112.5},{"period":"09h12","value":112.5},{"period":"09h13","value":112.2},{"period":"09h14","value":112.2},{"period":"09h15","value":112.5},{"period":"09h16","value":112.5},{"period":"09h17","value":112.7},{"period":"09h18","value":112.8},{"period":"09h19","value":112.8},{"period":"09h20","value":112.6},{"period":"09h21","value":112.8},{"period":"09h22","value":112.7},{"period":"09h23","value":112.7},{"period":"09h24","value":112.4},{"period":"09h25","value":112.4},{"period":"09h26","value":112.5},{"period":"09h27","value":112.5},{"period":"09h28","value":112.6},{"period":"09h29","value":112.6},{"period":"09h30","value":112.6},{"period":"09h31","value":112.8},{"period":"09h32","value":112.7},{"period":"09h33","value":112.8},{"period":"09h34","value":112.8},{"period":"09h35","value":112.9},{"period":"09h36","value":113.1},{"period":"09h37","value":113.3},{"period":"09h38","value":113.3},{"period":"09h39","value":113.2},{"period":"09h40","value":113.2},{"period":"09h41","value":113.1},{"period":"09h42","value":113.2},{"period":"09h43","value":113.1},{"period":"09h44","value":113},{"period":"09h45","value":113},{"period":"09h46","value":113.1},{"period":"09h47","value":113.2},{"period":"09h48","value":113.2},{"period":"09h49","value":113.2},{"period":"09h50","value":113.3},{"period":"09h51","value":113.3},{"period":"09h52","value":113.4},{"period":"09h53","value":113.3},{"period":"09h54","value":113.2},{"period":"09h55","value":113.2},{"period":"09h56","value":113.2},{"period":"09h57","value":113.2},{"period":"09h58","value":113.2},{"period":"09h59","value":113.2},{"period":"10h00","value":112.9},{"period":"10h01","value":113},{"period":"10h02","value":113},{"period":"10h03","value":113},{"period":"10h04","value":113},{"period":"10h05","value":113},{"period":"10h06","value":113.2},{"period":"10h07","value":113.2},{"period":"10h08","value":113.2},{"period":"10h09","value":113.2},{"period":"10h10","value":113.2},{"period":"10h11","value":113.2},{"period":"10h12","value":113.2},{"period":"10h13","value":113.2},{"period":"10h14","value":113.2},{"period":"10h15","value":113.2},{"period":"10h16","value":113.2},{"period":"10h17","value":113.3},{"period":"10h18","value":113.1},{"period":"10h19","value":113},{"period":"10h20","value":113},{"period":"10h21","value":113},{"period":"10h22","value":113},{"period":"10h23","value":112.8},{"period":"10h24","value":113},{"period":"10h25","value":113},{"period":"10h26","value":113},{"period":"10h27","value":112.9},{"period":"10h28","value":112.8},{"period":"10h29","value":112.8},{"period":"10h30","value":112.8},{"period":"10h31","value":112.8},{"period":"10h32","value":112.8},{"period":"10h33","value":112.8},{"period":"10h34","value":112.8},{"period":"10h35","value":112.9},{"period":"10h36","value":112.9},{"period":"10h37","value":112.9},{"period":"10h38","value":112.9},{"period":"10h39","value":112.9},{"period":"10h40","value":112.9},{"period":"10h41","value":112.9},{"period":"10h42","value":112.9},{"period":"10h43","value":112.9},{"period":"10h44","value":112.9},{"period":"10h45","value":112.9},{"period":"10h46","value":112.9},{"period":"10h47","value":113},{"period":"10h48","value":113},{"period":"10h49","value":113.1},{"period":"10h50","value":113},{"period":"10h51","value":113},{"period":"10h52","value":113},{"period":"10h53","value":113},{"period":"10h54","value":113},{"period":"10h55","value":113},{"period":"10h56","value":113},{"period":"10h57","value":113},{"period":"10h58","value":113},{"period":"10h59","value":113.2},{"period":"11h00","value":113},{"period":"11h01","value":113},{"period":"11h02","value":113},{"period":"11h03","value":113.1},{"period":"11h04","value":113},{"period":"11h05","value":113},{"period":"11h06","value":113},{"period":"11h07","value":113.1},{"period":"11h08","value":113.1},{"period":"11h09","value":113.1},{"period":"11h10","value":112.8},{"period":"11h11","value":112.9},{"period":"11h12","value":112.9},{"period":"11h13","value":113},{"period":"11h14","value":113},{"period":"11h15","value":113},{"period":"11h16","value":112.8},{"period":"11h17","value":112.9},{"period":"11h18","value":112.9},{"period":"11h19","value":112.9},{"pe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                                            var mergedConfig = $.extend(true, {}, chart.data.amChartConfig, chart.static.amChart);
                                            var elemSelector = mergedConfig.brs.id ? "#" + mergedConfig.brs.id : '[data-line-chart]';
                                            $(elemSelector).amCharts(mergedConfig, chart.data.amChartData);
                                        });

but that dos not look like what I get if I click on “5J” so I am wondering where the data are available :

I have a problem about “undefined site(a returned variable)”.
The code is attached.

The code is simple to get geolocation from a geotagged images through Exif library.
getExif() is a function to return a variable “site” whose type is google.maps.LatLng.
But somehow the returned value is undefined.
Weird is that some console.log() in the function is put at the end of the program,
even after console.log(“xxxxxxxxxxxxxxxx”), which is called way after the function.

Also I have tested by defining getExif2(); which simply returns a fixed value of google.maps.LatLng.
This works fine and returns the fixed value.
I think the fundamental difference between getExif() and getExif2() is calling Exif function or not.
I am suspecting exif function takes time because it processes a image file; the program goes next
without waiting the function finished. That is why the order of function has been changed, i.e. console.log(“xxxxxxxx”) is executed earlier and the variable “site” has not been set yet.

Any help would be appreciated.
Developped on Firefox 113.0.2 (Ubuntu 20.04).

Warm Regards,

DoKtor.

Geotagged image: please download below and save as ./london-bridge.jpg.
https://www.geoimgr.com/images/samples/england-london-bridge.jpg

Note: a google API key is set in my real script.

Code:
test_stackoverflow20240808.html

<!Doctype html>
<head>
<script type="text/javascript" src="https://maps.googleapis.com/maps/api/js?callback=initMap&loading=async"></script>

<script src="https://cdn.jsdelivr.net/npm/exif-js"></script>
<script type="text/javascript">
<!--header("Access-Control-Allow-Origin: *");-->

var Gsite;
var site;
var sites = [];

  function getExif(image) { // image as Image().src = "./image.jpg";
    console.log("getExif() called");
    console.log("getExif() called with: "+ image.src);
    var site = new google.maps.LatLng(0,0);
    console.log("site: "+site);
    //return site;
    EXIF.getData(image, function() {
        myData=this;
        var make = EXIF.getTag(this, "Make");
        var model = EXIF.getTag(this, "Model");
        var makeAndModel = document.getElementById("makeAndModel");
        makeAndModel.innerHTML = `${make} ${model}`;
        console.log("makeAndModel: "+ make + " " + model);

            // get latitude from exif data and calculate latitude decimal
            var latDegree = myData.exifdata.GPSLatitude[0].numerator;
            var latMinute = myData.exifdata.GPSLatitude[1].numerator;
            var latSecond = myData.exifdata.GPSLatitude[2].numerator;
            var latDirection = myData.exifdata.GPSLatitudeRef;

            var latFinal = ConvertDMSToDD(latDegree, latMinute, latSecond, latDirection);
        lat=latFinal;
        console.log("latFinal: "+latFinal);

            // get longitude from exif data and calculate longitude decimal
            var lonDegree = myData.exifdata.GPSLongitude[0].numerator;
            var lonMinute = myData.exifdata.GPSLongitude[1].numerator;
            var lonSecond = myData.exifdata.GPSLongitude[2].numerator;
            var lonDirection = myData.exifdata.GPSLongitudeRef;

            var lonFinal = ConvertDMSToDD(lonDegree, lonMinute, lonSecond, lonDirection);
        lng=lonFinal;
        console.log("lonFinal: "+lonFinal);


            site = new google.maps.LatLng(latFinal, lonFinal);
            console.log(site);
            //sites.push(site);

            return(site);

     });


}

function ConvertDMSToDD(degrees, minutes, seconds, direction) {
  var dd = degrees + (minutes/60) + (seconds/360000);
  if (direction == "S" || direction == "W") {
   dd = dd * -1;
  }
  return dd;
}


function getExif2(image) {
   site = new google.maps.LatLng(50.0, 60.0);
   console.log(site);
   sites.push(site);
   return(site);
}


function initialize() {
    console.log("initialize() called.");
    var img1 = document.getElementById("img1");
    console.log("img1: "+img1);

    Gsite=getExif(img1);
    console.log("img1 site: "+Gsite);
    console.log("xxxxxxxxxxxxxxxxxxxxxxxxxx");

    Gsite=getExif2(img1);
    console.log("img1 site: "+Gsite);
    console.log("yyyyyyyyyyyyyyyyyyyyyyyyyy");
}

function initMap() {
console.log("initMap called.");
initialize();
}

</script>

  </head>
  <!--<body onload="initialize()">-->
  <body>
  <img width=300 id="img1" src="london-bridge.jpg" />

<pre>Make and model: <span id="makeAndModel"></span></pre>
<br/>

</body>
</html>

This is my react component

const ButtonComponent = ({ children, onClick, disabled, className = "" }) => {
  console.log("class name is ", className);

  const buttonClassName = `
    bg-green-700 
    flex 
    hover:bg-green-500 
    transition 
    duration-300 
    ease-in-out 
    text-white 
    h-auto 
    text-base 
    p-2 
    rounded-[5px] 
    m-2 
    ${
      disabled
        ? "bg-teal-200 text-teal-800 cursor-not-allowed"
        : "cursor-pointer"
    } 
    ${className}
  `;

  return (
    <button onClick={onClick} className={buttonClassName} disabled={disabled}>
      {children}
    </button>
  );
};

export default ButtonComponent;

The console.log is working properly, but in the JSX, the className prop is not giving right value.

I have a component that creates a dropdown where the values are a list of policy areas that are pulled from a SQL server database/tables. The selected policy area is then saved into a useState called selectedPolicyArea. I then have a second component that I want to display the stakeholder who is in charge of the policy area, where whenever the selected policy area is changed the stakeholder name will change with it. For example: if Policy Area 1 is selected I expect the stakeholder name John Doe to be the only thing in the stakeholder box, but then if Policy Area 8 is selected then I would expect the stakeholder should switch to Jane Doe.

Dropdown Component and Current Stakeholder component

What console looks like when value is selected from dropdown and what the data looks like being pulled in from the stakeholder component

Here is the code for my Dropdown Component (I did raiase the state up to the parent component so I can use props as this selected value is used in another component as well)

import React, { useState, useEffect } from 'react';

const DropdownGetPolicyArea = (props) => {
 const [policyAreaName, setPolicyAreaName] = useState([]);
 const [selectedPolicyArea, setSelectedPolicyArea] = useState('');

 useEffect(() => {
    fetch('/GetPolicyAreaName', {
      method: 'GET',
      headers: {
        'Content-Type': 'application/json',
        'Accept': 'application/json'
      }
    })
      .then(res => res.json())
      .then(data => setPolicyAreaName(data))
      .catch(error => console.error('Error fetching data: ', error));
 }, []);

 const handleChange = (event) => {
    setSelectedPolicyArea(event.target.value);
    props.setSelectedPolicyArea(event.target.value)
 };

console.log(selectedPolicyArea)

 return (
    <div className='DropdownGetPolicyArea'>
      <h2>Policy Area Name</h2>
      <select  value={selectedPolicyArea} onChange={handleChange}>
        <option  value=''>...</option>
        {policyAreaName.map((category) => (
          <option key={category.Policy_Area_ID} value={category.Policy_Area_Name}>
            {category.Policy_Area_Name}
          </option>
        ))}
      </select>
    </div>
 );
};


export default DropdownGetPolicyArea;

Here is the code for my currentPolicyStakeholder component

import React, { useEffect, useState } from 'react';

const CurrentPolicyStakeholder = (props) => {
    const [stakeholder, setStakeholder] = useState([]);

    useEffect(() => {
        const fetchStakeholder = async () => {
            try {
                const response = await fetch('/GetStakeholder');
                const data = await response.json();
                setStakeholder(data);
            } catch (error) {
                console.error('Error fetching stakeholder:', error);
            }
        };
        fetchStakeholder();
    }, []);

    console.log(stakeholder);

        return(
            <div>
                <ul>{stakeholder.Employee_Preferred_Full_Name}{props.selectedPolicyArea}</ul>

            {stakeholder.map((stakeholders) => (
                <option>
                    {stakeholders.Stake_Table_PrimaryKey_ID} 
                    --
                    {stakeholders.Employee_Preferred_Full_Name}
                    --
                    {stakeholders.Employee_ID}
                </option>
            
        ))}
            </div>
    );

}
    
 
export default CurrentPolicyStakeholder;

My 2 APIs are:

app.get('/GetPolicyAreaName', async(req,res) =>{
    console.log('policy area called');
    const policyAreaName = await dbOperations.getPolicyAreaName()
    res.send(policyAreaName.recordset)
    console.log('called');
})


app.get('/GetStakeholder', async(req,res) =>{
    console.log('stakeholder called');
    const stakeholderName = await dbOperations.getCurrentActivePolicyStakeholder()
    res.send(stakeholderName.recordset)
    console.log('called');
})

The 2 queries where the data is being pulled from:

const getPolicyAreaName = async(policyAreaName) => {
    try {
        let pool = await sql.connect(config);
        let policyAreaName = await pool.request().query(`SELECT Policy_Area_ID,Policy_Area_Name from Policy_Area`)
        return policyAreaName;
    }
    catch(error) {
        console.log(error);
    }
}


const getCurrentActivePolicyStakeholder = async() => {
    try {
        let pool = await sql.connect(config);
        let stakeholderName = await pool.request()
        .query(`SELECT S.[Stakeholder_ID]
                ,S.[Employee_ID]
                ,S.[Employee_Preferred_Full_Name]
                ,S.[Stakeholder_Role_ID]
                ,S.[Stake_Table_Name]
                ,S.[Stake_Table_PrimaryKey_ColName]
                ,S.[Stake_Table_PrimaryKey_ID]
                ,PA.Policy_Area_Name
        
  
                FROM [LegoTest].[dbo].[Stakeholder] S
                join [LegoTest].[dbo].[Policy_Area] PA  ON    PA.Policy_Area_ID = S.Stake_Table_PrimaryKey_ID

                WHERE   S.Stake_Table_Name = 'Policy_Area'`
            )
        return stakeholderName;
    }
    catch(error) {
        console.log(error);
    }
}

I attempted to do some conditional rendering with if/else and also the ternary operator but could only ever get it to return the entire list of names from the stakeholder table from the database. I had thought that I could potentially use template literals in the getCurrentActivePolicyStakeholder SQL query under the ‘WHERE’ clause but I was unsuccessful at implementing that.

Any and all help/advice is greatly appreciated!

If you want to implement different types of file with different extension then use the below code

function validateFile(file: File): boolean {
        const allowedTypes: string[] = ['image/jpeg', 'image/png', 'application/pdf', 'text/txt'];
        const maxSize = 5 * 1024 * 1024; // Maximum file size (5MB)

        let isValidType = false;
        for (const type of allowedTypes) {
            if (file.type === type) {
                isValidType = true;
                break;
            }
        }

        if (!isValidType) {
            alert('Invalid file type. Only Text, JPEG, PNG, and PDF files are allowed.');
            return false;
        }

        if (file.size > maxSize) {
            alert('File size exceeds the maximum limit of 5MB.');
            return false;
        }

        return true;
    }

when i deploy my code Deno Deploy, I have this error in the logs and it says
“ERROR: RangeError: Invalid time value
at Date.toISOString ()”.
It happens because of this line in my code
const start = performance.timeOrigin; //undefined

I’ve tried to use Date.now() instead of performance.timeOrigin, and it worked. And also performance.now() working as well.

I’m having a problem (NextJS 12) attaching an event listener to an element that is conditionally rendered on load even though the initial state is true.

Basically, I have some buttons on a page that I’m adding event listeners to with useRef, but one of the buttons is in a component that is conditionally rendered via a state value. I have the state value set to true on load so that the button is initially rendered and exposed.

const { status: authStatus, data: session } = useSession();
const [emailExists, setEmailExists] = React.useState(true);
const buttonRefs = React.useRef([]);

React.useEffect(() => {
  if (authStatus !== 'unauthenticated') return;

  // Save initial ref
  const buttons = buttonRefs.current;
  console.log(buttons);

  buttons.forEach(button => {
    if (button) {
      console.log(button);
      button.addEventListener('keydown', myCallback);
    }
  });

  setEmailExists(false);

  // Cleanup
  return () => {
    buttons.forEach(button => {
      if (button) {
        button.removeEventListener('keydown', myCallback);
      }
    });
  };
}, [authStatus]);

// Handle ref assignment
const setButtonRef = (ref) => {
  return (el) => {
    if (el && !ref.current.includes(el)) {
      ref.current.push(el);
    }
  };
};

The component I’m conditionally rendering:

{emailExists && (
  <Box>
    <Button ref={setButtonRef(buttonRefs)}>
      Email exists
    </Button>
  </Box>
)}

When I console log buttonRefs.current, it correctly shows all buttons in the array, but only the one inside the conditionally rendered component is not getting the event listener attached. I suspect it has something to do with how state is handled on load because if I change emailExists to just true, then everything works as it should. Any help would be appreciated.

How to Choose the Right Frontend Framework for Web Development

I’m starting a new web development project and need to decide on a frontend framework. With so many options available (React, Angular, Vue.js, Ember.js, etc.), I’m having trouble evaluating their pros and cons. What are the key factors to consider when choosing a frontend framework, and how can I assess their strengths and weaknesses to select the best fit for my project’s specific needs and goals?

“I’ve researched and compared the documentation and feature lists of popular frontend frameworks like React, Angular, and Vue.js. I expected to find clear and concise information that would help me make an informed decision. However, I found that each framework has its own strengths and weaknesses, and the information available is often biased or outdated. I’m struggling to evaluate the pros and cons of each framework in the context of my project’s specific requirements and goals.”