JavaScript - 在对象内打乱对象(随机化)

Question

这个问题已经有答案了:

How to randomize (shuffle) a JavaScript array? (71 个回答)

已关闭 8 年前。

我需要根据 JSON 结果实现随机化。

JSON 的格式是两个对象:

结果:

问题(对象)

[Object { id="4c6e9a41470b19_96235904",  more...}, 
 Object { id="4c784e6e928868_58699409",  more...}, 
 Object { id="4c6ecd074662c5_02703822",  more...}, 6 more...]

主题(对象)

[Object { id="3jhf3533279827_23424234",  more...}, 
 Object { id="4634663466cvv5_43235236",  more...}, 
 Object { id="47hf3892735298_08476548",  more...}, 2 more...]

我想随机化问题对象和主题对象内对象的顺序。

Answer 1

您可以使用Fisher-Yates-Durstenfeld shuffle :

var shuffledQuestionArray = shuffle(yourQuestionArray);
var shuffledTopicArray = shuffle(yourTopicArray);

// ...

function shuffle(sourceArray) {
    for (var i = 0; i < sourceArray.length - 1; i++) {
        var j = i + Math.floor(Math.random() * (sourceArray.length - i));

        var temp = sourceArray[j];
        sourceArray[j] = sourceArray[i];
        sourceArray[i] = temp;
    }
    return sourceArray;
}