How to implement code to delete specified elements of an array in javascript

This article brings you the code about how to delete specified elements of an array in JavaScript. It has certain reference value. Friends in need can refer to it. I hope it will be helpful to you.

Array.prototype.indexOf = function(val) {
    for (var i = 0; i < this.length; i++) {
        if (this[i] == val) return i;
    }
    return -1;
};
//返回指定元素的索引值

Array.prototype.remove = function(val) {
    var index = this.indexOf(val);
    if (index > -1) {
        this.splice(index, 1);
    }
};
//从数组中删除指定元素

使用方法
var arr = [1,2,3]
arr.remove('1') // arr == [2,3]

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