有没有办法检查两个数组是否具有相同的元素？

Let say I have 2 arrays

假设我有2个阵列

firstArray  = [1, 2, 3, 4, 5];
secondArray = [5, 4, 3, 2, 1];

I want to know if they contain the same elements, while order is not important. I know I can write a function to sort them and then loop through them to check, but is there a pre-built function for this? (not only Vanilla JS, other javascript library is also okay)

我想知道它们是否包含相同的元素,而顺序并不重要。我知道我可以编写一个函数来对它们进行排序,然后循环遍历它们进行检查,但是有没有预先构建的函数呢? (不仅是Vanilla JS,其他javascript库也没关系)

4 个解决方案

#1

Using jQuery

You can compare the two arrays using jQuery:

您可以使用jQuery比较两个数组:

// example arrays:
var firstArray  = [ 1, 2, 3, 4, 5 ];
var secondArray = [ 5, 4, 3, 2, 1 ];

// compare arrays:
var isSameSet = function( arr1, arr2 ) {
  return  $( arr1 ).not( arr2 ).length === 0 && $( arr2 ).not( arr1 ).length === 0;  
}

// get comparison result as boolean:
var result = isSameSet( firstArray, secondArray );

Here is a JsFiddle Demo

这是一个JsFiddle演示

See this question helpful answer

看到这个问题有用的答案

4 个解决方案

#1

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