Question 11171 in Jquery Question posted in
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How to shuffle JSON.parse data? – Jquery

Is it possible to shuffle a json parsed result from ajax?

$.ajax({
    method: 'GET',
    url: '/-pathSomething-/--ExampleOnly--',
    data: { sample: sample, sample: sample, sample: sample },
    success: function (result) {
        var ExamDislayQNChoiceML = JSON.parse(result);
    }
});

it is looks like this here

i don’t know how to do it so i don’t have much code to show..

expected output.
randomly

{ QuesNo: 3, QuesID: 3, ... }
{ QuesNo: 1, QuesID: 1, ... }
{ QuesNo: 4, QuesID: 4, ... }
{ QuesNo: 2, QuesID: 2, ... }
{ QuesNo: 5, QuesID: 5, ... }
Tags:

3

Answers


  1. 0

    this could do your request

    let myJSON = {
  "name": "John",
  "age": 30,
  "city": "New York"
};

let myArray = Object.entries(myJSON);

for (let i = myArray.length - 1; i > 0; i--) {
  const j = Math.floor(Math.random() * (i + 1));
  [myArray[i], myArray[j]] = [myArray[j], myArray[i]];
}

myJSON = Object.fromEntries(myArray);

console.log(myJSON);

    This will be the output

    {
  "city": "New York",
  "name": "John",
  "age": 30
}
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  2. 0

    use the Fisher-Yates shuffle algorithm here is a documentation link: https://en.wikipedia.org/wiki/Fisher%E2%80%93Yates_shuffle and Here’s an example of how use it to shuffle the array of objects

    $.ajax({
    method: 'GET',
    url: '/-pathSomething-/--ExampleOnly--',
    data: { sample: sample, sample: sample, sample: sample },
    success: function (result) {
        var ExamDislayQNChoiceML = JSON.parse(result);
        shuffleArray(ExamDislayQNChoiceML);
        console.log(ExamDislayQNChoiceML); // shuffled array
    }
});

function shuffleArray(array) {
    for (let i = array.length - 1; i > 0; i--) {
        const j = Math.floor(Math.random() * (i + 1));
        [array[i], array[j]] = [array[j], array[i]];
    }
}
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  3. 0

    Assuming that you wanted to shuffle array of questions objects: You can pass Math.random() to Array.sort() method. Math.random() returns float between 0 and 1. When you subtract 0.5 from result of Math.random(), the Array.sort() compare function returns random positive or negative value, so the array is shuffled:

    const shuffleArray = arr => arr.sort(() => Math.random() - 0.5);
const shuffledArr = shuffleArray(arr);
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