Category: javascript

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Changing text depending on date

I am an absolute beginner in Javascript writing. I would like to create a code that would display a text in a given date interval (e.g. 2022.10.23-2022.11.25), but not in any other date interval. Try as I might with this code, it fails. Thanks in advance for your help.

<label id="lblGreetings"></label>  <script> var myDate = new Date(); var hrs = myDate.getHours(); var greet;

if ((myDate = 'October 24, 2022')) greet = 'Good Morning';    document.getElementById('lblGreetings').innerHTML = '<b>' + greet + '</b> and welcome to Encodedna.com!'; </script>

What rule should I add to Firestore DB for not override the existing data in the same array if it has the same value? [duplicate]

If I add the same data inside the same array in Firestore, it not creates more indexes in the array because it has the same data.

I want it to create more indexed when the same data is entered inside the array.

for example:

enter image description here

expected result:

expected result

code:

// collection reference
const collectionRef = collection(db, 'exercises data');
// submit function to add the exercises data
const handleSubmit = async (e) => {
    e.preventDefault();
    const usr = auth.currentUser;
    await setDoc(doc(collectionRef, usr.uid), {
        exercise: arrayUnion(exercise),
        sets: arrayUnion(Number(sets)),
        reps: arrayUnion(Number(reps)),
    }, { merge: true })
}

I use handleChange to set the state value, but it not change

I want to create responsive multiple forms (form1, form2, and form3) with the same pages using framer motion. However, when I create the state value and want to make it change when the user fills the form by using setValue in handleChange, the value of the state is not updated correctly as I want. When the user fills Select Protocol the filled form is not updated on the user screen but the state is changed. Moreover, when the user fills Select number of hops after that, the link level state is deleted. I have no idea how to fix this problem.

import React, { useState, useEffect } from "react";
import { motion, AnimatePresence } from "framer-motion";

export default function ExperC() {

  // state that I want to collect user fill form
  const [value, setValue] = useState({
    link_level: "",
    hop_select: "",
    num_hop: "",
    location_1: "",
    location_2: "",
    photon_loss: "",
    dep: "",
    gate_error: "",
    coherent: "",
    mea_error: "",
    trajectory: "",
  });

  const handleChangeLinklevel = (e) => {
    setValue({ ...value, link_level: e.target.value });
  };
  const handleChangeHop = (e) => {
    setValue({ ...value, hop_select: e.target.value });
  };

  // jsx of form 1
  const form1 = (
    <form action="" className="w-[140%]">
      <div className="flex space-x-2">
        <h1 className="text-[#fff] text-4xl">Configure your </h1>
        <h1 className="text-[#ad73f1] text-4xl">Qwanta network</h1>
      </div>

      <p className="mt-5 mb-2 text-gray-400">Select Protocol</p>
      <select
        className="w-full h-8 text-black bg-white"
        onChange={handleChangeLinklevel}
        value={value.link_level}
      >
        <option value="" disabled selected>
          Select your protocol
        </option>
        <option value="0G">0 Generation (0G)</option>
        <option value="1G">1G-Ss-Dp (1G)</option>
        <option value="2G-NCX">2G-NonLocal-CNOT (2G-NCX)</option>
        <option value="HG-DE">1-2G-Directed-Encoded, (HG-DE)</option>
        <option value="HG-E2E-PE">HG-E2E-PurifiedEncoded</option>
        <option value="Design own protocol">Design own protocol</option>
      </select>

      {useEffect(() => {
        console.log("test", value);
      })}

      <p className="mt-5 mb-2 text-gray-400">Select number of hops</p>
      <select
        className="w-full h-8 text-black bg-white"
        onChange={handleChangeHop}
        value={value.hop_select}
      >
        <option value="" disabled selected>
          2^n hops
        </option>
        <option value="2">2 hops, 3 nodes</option>
        <option value="4">4 hops, 5 nodes</option>
        <option value="8">8 hops, 9 nodes</option>
      </select>
    </form>
  );

  const form2 = <>This is form 2</>

  const form3 = <>This is form 3</>;

  // for responsive slide between form using framer motion
  const experitem = [
    { name: "config1", icon: "test1", form: form1 },
    { name: "config2", icon: "test2", form: form2 },
    { name: "config3", icon: "test3", form: form3 },
  ];

  const [selectedTab, setSelectedTab] = useState(experitem[0]);

  return (
    <div className="flex flex-col w-[800px] h-[600px] absolute top-[150px] bg-[#262626] left-1/3 rounded-xl overflow-hidden">
      <nav className="bg-gray1 pt-3 px-3 rounded-t-xl h-[60px]">
        <ul className="flex w-full">
          {experitem.map((item, index) => (
            <motion.li
              key={index}
              className={`text-white list-none cursor-pointer rounded-t-xl w-full p-3 relative bg-[#262626] h-[70px] flex justify-between align-middle flex-1 min-w-0
            `}
              onClick={() => setSelectedTab(item)}
              initial={{ y: 0 }}
              whileHover={{ y: -5 }}
            >
              {item.name}
              {/* {item == selectedTab ? (
                <div className="absolute -bottom-[2px] left-0 right-0 h-[1px] bg-blue-500" />
              ) : null} */}
            </motion.li>
          ))}
        </ul>
      </nav>

      <main className="bg-[#262626] flex justify-left align-middle flex-grow mt-6 ml-5">
        <AnimatePresence exitBeforeEnter>
          <motion.div
            key={selectedTab ? selectedTab.name : "empty"}
            initial={{ x: -100, opacity: 0 }}
            animate={{ x: 0, opacity: 1 }}
            exit={{ x: -10, opacity: 0 }}
            transition={{ duration: 0.2 }}
          >
            {selectedTab ? selectedTab.form : null}
          </motion.div>
        </AnimatePresence>
      </main>
    </div>
  );
}

enter image description here

enter image description here

my responsive Navbar bin doesn’t work, why?

i was making my Scroll project,with all transitions etc. I started with responsive Navbar,everyrhing was good but the moment when I press the button and my lists open doesn’t work, how I can fix it?

here is my js code:

const btn = document.getElementsByClassName('nav-btn')[0];
const links = document.getElementsByClassName('navbar-links')[0];

btn.addEventListener('click',()=>{
    links.classList.toggle('active')
})

here is css:

.bar1, .bar2, .bar3 {
    width: 35px;
    height: 5px;
    background-color: #333;
    margin: 6px 0;
    transition: 0.4s;
}

body{
    margin: 0;
    padding: 0;
}
  
.change .bar1 {
    transform: translate(0, 11px) rotate(-45deg);
}
  
.change .bar2 {opacity: 0;}
  
.change .bar3 {
    transform: translate(0, -11px) rotate(45deg);
}

#nav{
    background-image: url("images/page.jpg");
    height: 800px;
    background-repeat:no-repeat;
    -webkit-background-size:cover;
    -moz-background-size:cover;
    -o-background-size:cover;
    background-size:cover;
    background-position:center;
}

.nav-header h1{
    padding-left: 10px;
    font-size: 1.6rem;
}


.navbar{
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: white;
}

.navbar-links ul{
    margin: 0;
    padding: 0;
    display: flex;
    font-size: 1.2rem;
}

.navbar-links li{
    list-style: none;
}

.navbar-links li a{
    text-decoration: none;
    color: black;
    display: block;
    padding: 1rem;
}

.nav-btn{
    background-color: white;
    display: none;
    cursor: pointer;
    border: none;
    position: absolute;
    right: 5px;
    top: 12px;
}

and here is html:

  <header id="home">
    <div id="nav">
      <nav class="navbar">
        <div class="nav-header">
          <h1>Menu</h1>

          <button class="nav-btn" onclick="this.classList.toggle('change');">
            <div class="bar1"></div>
            <div class="bar2"></div>
            <div class="bar3"></div>
          </button>
        </div>
        <div class="navbar-links">
          <ul>
            <li><a href="#home" class="scroll">home</a></li>
            <li><a href="#about" class="scroll">about</a></li>
            <li><a href="#services" class="scroll">services</a></li>
          </ul>
        </div>
      </nav>
    </div>

    <div class="banner">
      <div class="container">
        <h1>scroll project</h1>
        <p>wsjnciunclsnjiemc ljfnjdc cinufifl,vlfldlvlekfopec ciun ck cipn i inrc cijan9pnc cipqe</p>
        <button class="scroll-link-btn"><a href="#tursr">Explore Tours</a></button>
      </div>
    </div>
  </header>

so,how can I fix it?Will be pleased for the solution!

Thank you for help!

How to update RTK Query cache when Firebase RTDB change event fired (update, write, create, delete)

I am using redux-tookit, rtk-query (for querying other api’s and not just Firebase) and Firebase (for authentication and db).

The code below works just fine for retrieving and caching the data but I wish to take advantage of both rtk-query caching as well as Firebase event subscribing, so that when ever a change is made in the DB (from any source even directly in firebase console) the cache is updated.

I have tried both updateQueryCache and invalidateTags but so far I am not able to find an ideal approach that works.

Any assistance in pointing me in the right direction would be greatly appreciated.

// firebase.ts
export const onRead = (
  collection: string,
  callback: (snapshort: DataSnapshot) => void,
  options: ListenOptions = { onlyOnce: false }
) => onValue(ref(db, collection), callback, options);

export async function getCollection<T>(
  collection: string,
  onlyOnce: boolean = false
): Promise<T> {
  let timeout: NodeJS.Timeout;
  return new Promise<T>((resolve, reject) => {
    timeout = setTimeout(() => reject('Request timed out!'), ASYNC_TIMEOUT);
    onRead(collection, (snapshot) => resolve(snapshot.val()), { onlyOnce });
  }).finally(() => clearTimeout(timeout));
}

// awards.ts
const awards = dbApi
  .enhanceEndpoints({ addTagTypes: ['Themes'] })
  .injectEndpoints({
    endpoints: (builder) => ({
      getThemes: builder.query<ThemeData[], void>({
        async queryFn(arg, api) {
          try {
            const { auth } = api.getState() as RootState;
            const programme = auth.user?.unit.guidingProgramme!;
            const path = `/themes/${programme}`;
            const themes = await getCollection<ThemeData[]>(path, true);
            return { data: themes };
          } catch (error) {
            return { error: error as FirebaseError };
          }
        },
        providesTags: ['Themes'],
        keepUnusedDataFor: 1000 * 60
      }),

      getTheme: builder.query<ThemeData, string | undefined>({
        async queryFn(slug, api) {
          try {
            const initiate = awards.endpoints.getThemes.initiate;
            const getThemes = api.dispatch(initiate());
            const { data } = (await getThemes) as ApiResponse<ThemeData[]>;
            const name = slug
              ?.split('-')
              .map(
                (value) =>
                  value.substring(0, 1).toUpperCase() +
                  value.substring(1).toLowerCase()
              )
              .join(' ');

            return { data: data?.find((theme) => theme.name === name) };
          } catch (error) {
            return { error: error as FirebaseError };
          }
        },
        keepUnusedDataFor: 0
      })
    })
  });

Remove/hide polygon from Google Map on react-google-maps/api

@react-google-maps/api”: “^2.13.1” | https://www.npmjs.com/package/@react-google-maps/api

Hi Everybody. My name is Hassan & I’m a freelance React JS developer. I have been working with this API to build project for a client on Upwork. What I want to achieve is
A Google Map with a button to toggle custom Polygon Shapes’s visibility on & off. The components first render with out a polygon and when the user clicks on the button the polygon loads up to highlight USA states where the health centers are.
It is working till here. However when again clicking on the button I want the polygon to be removed/hidden from Map. However once mounted to the Map the polygon does not go away. It changes opacity of fill color of polygon but does not go away.
Here is what I have tried already

Passing true/false as “visible” Prop value to Polygon component based on state. But once rendered the Polygon is not removed even after passing false as a prop.
The second method I tried is using State to conditionally render the Polygon.
i.e showPolygon ? : null
This did not work either, I even tried this with Whole Map components. i.e load Simple Component or loading Map Component with Polygon as child component.
Please see my code in the screenshot below. The State changes as expected. The Polygon component just won’t go away with a re-render.

Code Screenshot

React Select and Formik

I am trying to use Formik with React to crete a form. However, I am having a problem displaying a Drop Down list with errors if nothing is selected i.e., Both the Input and Select fields are mandatory.

So Firstly I have created a custom Input and Select component where props like classNames and Invalid are passed.

Custom Input [OnClick and ntohing entered, turn the border red and validation error = true]

Custom Input


export interface IInputProps extends InputProps{
    children?: ReactNode, 
    className?:string
}
export default ({className, ...props}: IInputProps) => {
    if(props.invalid)
        className += ' is-invalid'
    return(
        <Input className={className} {...props} />
    )
}

Custom Select [OnClick and ntohing selected, turn the border red and validation error = true]

import Select from "react-select"
import { StateManagerProps } from "react-select/dist/declarations/src/useStateManager";

export interface IStateManagerProps extends StateManagerProps{
    children?: ReactNode, 
    className?:string
    invalid?:boolean
}
export default ({className, ...props}: IStateManagerProps ) => {
    if(props.invalid)
        className += ' is-invalid'
    return(
        <Select className={className} {...props} />
    )
}

CSS

.form-control.is-invalid {
  border-color: $danger !important;
}

.border-bottom{
  border-color: transparent !important;
  border-bottom: 2px solid red !important;
}

Main Form.

export function Validation() {

    return useFormik({
        enableReinitialize: true,
        initialValues: {
            name: "" ,
            country:""
        },
        validationSchema: validationSchema(),
        onSubmit: (values) => {
           
        }
    });

}

export function validationSchema() {
    return Yup.object({
      name: Yup.string().required("Name field is required"),
      country: Yup.string().required("Country field is required"),
    });
}

obj = [
   {
    "id":"qwerc",
    "code":"1",
    "label":"USA",
    "name":"USA"
   },
   {
    "id":"fdf3a96bda",
    "code":"CXGD",
    "label":"AUS"
    "name":"AUS"
   }
]

const MainForm = (validation) => {
return
(
<Form>

  <Input
          className="form-control border-bottom"
          onChange={onChange}
          value={validation.values?.name || ""}
          name="name"
          type="text"
          placeholder="Enter name"
          onBlur={validation.handleBlur}
          invalid={validation.touched.name && validation.errors.name? true: false}
      />
      { validation.touched.commodityType && validation.errors.commodityType? (
        <FormFeedback type="invalid"> {validation.errors.name}</FormFeedback>
    ) : null}


//import Select from './custom/Select'
<Select
              options={obj}
              className="form-control border-bottom"
              onChange={() => onChange}
              value={validation.values?.country|| ""}
              name="country"
              type="select"
              placeholder="Country"
              onBlur={validation.handleBlur}
              invalid={validation.touched.country && validation.errors.country? true: false}
            />
      { validation.touched.country && validation.errors.country? (
        <FormFeedback type="invalid"> {validation.errors.country}</FormFeedback>
    ) : null}

</Form>

Onclick and empty string

Drop down list with list of countries but no red borders and no validation errors if nothing selected.

delete keys from a nested object from an array of keys

I have a very large array of objects that I need the keys remove from. I can’t seem to get my head around how to make this happen with list of keys.

https://jsfiddle.net/rgfx_fiddle/cvoz7ygm/15/

const sections = [
            {
                municipality: "Monte De Oca",
                office: "Oficina de la Mujer"
            },
            {
                case_number: "MDO-ABCDEFG",
                identification: "Cédula",
                id_number: "123456789"
            }
];
    
const removeThis = [
    "municipality",
    "id_number"
]


function filter(data) {
  for(var i in data){
    if(removeThis.indexOf(i) != -1){
       delete data[i]; 
    }
  }
  return data;
}

console.log(filter(sections));

Hiding the PayPal Credit button on Braintree JavaScript v4 SDK

I’m posting this here in the hope there are some Braintree/PayPal engineers looking at StackOverflow for support issues. I have submitted a support ticket through their new form twice, but have had no reply.

We have noticed very recently that the “PayPal Credit” button has appeared on our payment page without any code changes by us to turn this on.

How we would disable this?

PayPal Credit

Also, is it default behaviour to display this on sandbox accounts only? This does not seem to be affecting our production environment (yet).

We are using v4 of the JavaScript SDK:

braintreeClient: "https://js.braintreegateway.com/web/3.87.0/js/client.min",
hosted_fields: "https://js.braintreegateway.com/web/3.87.0/js/hosted-fields.min",
checkoutJs: "https://www.paypalobjects.com/api/checkout.min",
paypalCheckout: "https://js.braintreegateway.com/web/3.87.0/js/paypal-checkout.min"

I have tried passing through offerCredit: false, but this has had no effect:

// Set up PayPal with the checkout.js library
paypal.Button.render({
    env: '{{ braintree_env }}', // 'sandbox' or 'production'
    style: {
        label: 'paypal',
        size:  'responsive',    // small | medium | large | responsive
        shape: 'rect',     // pill | rect
        color: 'white',     // gold | blue | silver | black
        tagline: false,
        width: 500,
        height: 55
    },
    payment: function () {
        return paypalCheckoutInstance.createPayment({
            flow: 'vault', // required to allow us to charge the account in future without re-authentication
            offerCredit: false
        });
    },

What is this format? -csv or Json or xml?

Security CodetSecurity NametGrouptLTPtChgt% Chgn533317tOMKARCHEMtBt23.40t3.90t20.00n526576tTECHINtBt14.30t2.38t19.97n543636tDCItBt93.70t15.60t19.97n523007tANSALBUtXt102.95t16.85t19.57n543614tTIPSFILMStBt524.95t84.55t19.20n504648tBOMBWIRtXt37.90t5.65t17.52n543285tRCANtMt105.00t15.50t17.32n526891tMKTCREATtXt11.00t1.48t15.55n522231tCONARTtXt45.90t6.05t15.18n533638tFLEXITUFFtBt29.05t3.55t13.92n540386tONTICtXt1.86t0.21t12.73n524280tKOPRANtBt172.25t18.25t11.85n531543tJINDWORLDtBt277.70t28.90t11.62n500144tFINCABLEStAt493.85t44.95t10.01n531201tSHILCTECHtXt797.20t72.45t10.00n536773tJPOLYINVSTtBt539.15t49.00t10.00n542694tPARSHVAtBt196.35t17.85t10.00n543544tJAYANTtMt607.20t55.20t10.00n514360tKRRAILtXt54.55t4.95t9.98n530271tRICHUNVtXt8.27t0.75t9.97n542842tNIESSPKtBt104.20t9.45t9.97n526473tELEFLORtXt10.42t0.94t9.92n542627tCHANDNIMACHtXt30.50t2.75t9.91n543606tCONTAINEtMt43.30t3.90t9.90n532035tUNISTRMUtXt21.15t1.90t9.87n532005tSAMINDUStXt36.25t3.25t9.85n542808tNIESSPCtBt2.79t0.25t9.84n532406tAVANTELtXt325.65t29.15t9.83n542727tCPMLtMt33.00t2.95t9.82n543176t11MPRtBt8.64t0.77t9.78n540811tDMLtMt13.50t1.20t9.76n524606tBERLDRGtXt9.87t0.87t9.67n532395tAXISCADEStBt214.25t18.60t9.51n531281tMARBLEtXt20.85t1.80t9.45n542146tSKIFLtMt21.00t1.80t9.38n890169tDYNPROPPtBt143.70t12.10t9.19n507828tANSALHSGtXt5.50t0.46t9.13n543177t11QPDtBt1.56t0.13t9.09n523832tMUKATPIPtXt8.29t0.69t9.08n500220tJASCHtXt180.35t14.95t9.04n542651tKPITTECHtAt711.90t58.95t9.03n532215tAXISBANKtAt900.25t74.05t8.96n505250tGGDANDEtXt74.95t6.10t8.86n522074tELGIEQUIPtAt490.90t39.90t8.85n543327tEXXAROtBt137.90t11.20t8.84n541152tGOYALALUMtMt136.10t10.85t8.66n534755tTRIOMERCtXt1.14t0.09t8.57n539725tGOKULAGROtBt138.75t10.95t8.57n505690tBRADYMtXt169.65t13.20t8.44n524628tPARKERACtXt10.34t0.80t8.39