ArrayList类（增强版）
2024-09-06 12:42:44
供稿：网友
Author:月影
From:http://bbs.51js.com/thread-66469-1-1.html
代码如下:
<script>
function ArrayList()
{
var ins = Array.apply(this, arguments);
ins.constructor = arguments.callee;
ins.base = Array;
ins.each = function(closure)
{
if(typeof closure == 'undefined')
closure = function(x){return x};
if(typeof closure != 'function')
{
var c = closure;
closure = function(x){return x == c}
}
var ret = new ArrayList();
var args = Array.apply(this, arguments).slice(1);
for(var i = 0; i < this.length; i++)
{
var rval = closure.apply(this, [this[i]].concat(args).concat(i))
if(rval || rval === 0)
ret.push(rval);
}
return ret;
}
ins.trim = function()
{
return this.each.apply(this);
}
ins.all = function(closure)
{
return this.each.apply(this, arguments).length == this.length;
}
ins.any = function(closure)
{
return this.each.apply(this, arguments).length > 0;
}
ins.contains = function(el)
{
return this.any(function(x){return x == el});
}
ins.indexOf = function(el)
{
var ret = this.each.call(this, function(x, i){return el == x?i:false})[0];
return ret ? ret : -1;
}
ins.subarr = function(start, end)
{
end = end || Math.Infinity;
return this.each.call(this, function(x, i){return i >= start && i < end ? x : null});
