删除数组中的元素

Array.prototype.indexOfArry = function(val) {
for (var i = 0; i < this.length; i++) {
if (this[i] == val) return i;
}
return -1;
};
Array.prototype.removeArry = function(val) {
var index = this.indexOfArry(val);
if (index > -1) {
this.splice(index, 1);
}
};