JavaScript数组添加remove()方法

第一种：

//Array Remove - By John Resig (MIT Licensed)
Array.prototype.remove = function(from, to) {
    var rest = this.slice((to || from) + 1 || this.length);
    this.length = from < 0 ? this.length + from : from;
    return this.push.apply(this, rest);
};

//Array Remove - By John Resig (MIT Licensed)
Array.prototype.remove = function(from, to) {
    var rest = this.slice((to || from) + 1 || this.length);
    this.length = from < 0 ? this.length + from : from;
    return this.push.apply(this, rest);
};

这个函数扩展了JavaScript的内置对象Array，这样，我们以后的所有声明的数组都会自动的拥有remove能力

用法：

var array = ["one", "two", "three", "four", "five", "six"];
array.remove(0);//删除第一个元素
array.remove(-1);//删除倒数第一个元素
array.remove(0,2);//删除数组中下标为0-2的元素(3个)

var array = ["one", "two", "three", "four", "five", "six"];
array.remove(0);//删除第一个元素
array.remove(-1);//删除倒数第一个元素
array.remove(0,2);//删除数组中下标为0-2的元素(3个)

第二种：

//Array Remove - By John Resig (MIT Licensed)
Array.remove = function(array, from, to) {
    var rest = array.slice((to || from) + 1 || array.length);
    array.length = from < 0 ? array.length + from : from;
    return array.push.apply(array, rest);
};

//Array Remove - By John Resig (MIT Licensed)
Array.remove = function(array, from, to) {
    var rest = array.slice((to || from) + 1 || array.length);
    array.length = from < 0 ? array.length + from : from;
    return array.push.apply(array, rest);
};

第二种方法的操作方式与上一种一样，但是不影响全局对象，相当于给JavaScript内置的Array添加了一个静态方法

用法：

Javascript代码

var array = ["one", "two", "three", "four", "five", "six"];
Array.remove(array, 0, 2);//删除0, 1, 2三个元素

http://zdeming.javaeye.com/blog/664684