根据另一个数组从数组中删除项目

I have two arrays:

我有两个数组:

var firstArr = [1,2,3,4,5];
var secondArr = [2,3];

How can I get an array like this:

我怎样才能获得这样的数组:

[1,4,5]

I would like to use a solution that could be used when elements of the array are objects with multiple properties.

我想使用一个解决方案,当数组的元素是具有多个属性的对象时,可以使用该解决方案。

2 个解决方案

#1

Use filter:

The filter() method creates a new array with all elements that pass the test implemented by the provided function.

filter()方法创建一个新数组,其中包含通过所提供函数实现的测试的所有元素。

For example:

firstArr.filter(function(item){ 
    return secondArr.indexOf(item) === -1; 
});

#2

You can use this Function to remove items.

您可以使用此功能删除项目。

function removeA(arr) {
    var what, a = arguments, L = a.length, ax;
    while (L > 1 && arr.length) {
        what = a[--L];
        while ((ax= arr.indexOf(what)) !== -1) {
            arr.splice(ax, 1);
        }
    }
    return arr;
}
var ary = ['three', 'seven', 'eleven'];
removeA(ary, 'seven');

#1