How can i pick out the integers that are smaller or equal to 60 with .map array method

 const recipes = [
  {
    title: 'Crepes',
    duration: 60,
    ingredients: ['butter', 'flour', 'eggs', 'milk', 'salt'],
    servings: 3
  },
  {
    title: 'Scrambled Eggs',
    duration: 20,
    ingredients: ['eggs', 'milk', 'salt'],
    servings: 2
  },
  {
    title: 'Vegan Salmon',
    duration: 60 * 24 * 3, // 3 days
    ingredients: ['carrots', 'olive oil', 'nori sheets', 'liquid smoke', 'soy sauce'],
    servings: 10
  },
  {
    title: 'Carot Cake',
    duration: 120,
    ingredients: ['carrots', 'flour', 'eggs', 'salt', 'milk', 'sugar'],
    servings: 10
  }
]

I want to create an array like this:

['Crepes (60min)', ...]

Thats my code so far:

    const titlesWithDuration = recipes.map((titles) => {
      return `${titles.title} (${titles.duration}min)`; 
    }); 

console.log(titlesWithDuration)

Problem is, if i use things like operators, for example:

titles.duration <= 60

i will get this:

["Crepes (truemin)","Scrambled Eggs (truemin)","Vegan Salmon (falsemin)","Carot Cake (falsemin)"]

How can i use operators which give me a string output?