DQW's Blog 用适合的技术解决实际的问题

Array.prototype.indexOf = function(val) {
    for (var i = 0; i < this.length; i++) {
        if (this[i] == val) return i;
    }
    return -1;
};

Array.prototype.remove = function(val) {
    var index = this.indexOf(val);
    if (index > -1) {
        this.splice(index, 1);
    }
};

var array = [1, 2, 3, 4, 5];
array.remove(3);

var index = $.inArray(value, array);
if (index >= 0) {
   array.splice(index, 1);
}