对象数组排序 [英] Sort array of objects

问题描述

我有一个像这样的对象文字数组:

I have an array of object literals like this:

var myArr = [];

myArr[0] = {
   'score': 4,
   'name': 'foo'
}

myArr[1] = {
   'score': 1,
   'name': 'bar'
}

myArr[2] = {
   'score': 3,
   'name': 'foobar'
}

我将如何对数组进行排序，使其按 'score' 参数升序，使其变为:

How would I sort the array so it ascends by the 'score' parameter such that it would change to:

myArr[0] = {
   'score': 1,
   'name': 'bar'
}

myArr[1] = {
   'score': 3,
   'name': 'foobar'
}

myArr[2] = {
   'score': 4,
   'name': 'foo'
}

提前致谢.

推荐答案

Try myArr.sort(function (a, b) {return a.score - b.score});

数组元素的排序方式取决于传入的函数返回的数字:

The way the array elements are sorted depends on what number the function passed in returns:

• <代码><0(负数):a 在 b
之前
• <代码>>0(正数):b 在 a
前面
• 0:在这种情况下，两个数字将在排序列表中相邻.但是，排序并不能保证稳定:a 和 b 相对于彼此的顺序可能改变.

• < 0 (negative number): a goes ahead of b
• > 0 (positive number): b goes ahead of a
• 0: In this cases the two numbers will be adjacent in the sorted list. However, the sort is not guaranteed to be stable: the order of a and b relative to each other may change.

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