JavaScript DHTML/Mochkit/instanceof — различия между версиями
Admin (обсуждение | вклад) м (1 версия) |
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(нет различий)
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Версия 10:00, 26 мая 2010
instanceof operator
<!--
MochiKit is dual-licensed software. It is available under the terms of the
MIT License, or the Academic Free License version 2.1. The full text of
each license is included below.
-->
<!-- Code revised from MochiKit demo code -->
<html>
<head>
<script type="text/javascript" src="MochiKit-1.4.2/lib/MochiKit/Base.js"></script>
<script type="text/javascript" src="MochiKit-1.4.2/lib/MochiKit/Iter.js"></script>
<script type="text/javascript" src="MochiKit-1.4.2/lib/MochiKit/DOM.js"></script>
<script type="text/javascript" src="MochiKit-1.4.2/lib/MochiKit/Style.js"></script>
<script type="text/javascript" src="MochiKit-1.4.2/lib/MochiKit/Logging.js"></script>
<script type="text/javascript" src="MochiKit-1.4.2/lib/MochiKit/Iter.js"></script>
</head>
<body>
<pre id="test">
<script type="text/javascript">
var O = function (value) {
bindMethods(this);
this.value = value;
};
O.prototype.func = function () {
return this.value;
};
var o = new O("boring");
var p = {};
p.func = o.func;
var func = o.func;
alert( o.func(), "boring", "bindMethods doesn"t break shit" );
alert( p.func(), "boring", "bindMethods works on other objects" );
alert( func(), "boring", "bindMethods works on functions" );
var p = clone(o);
alert( p instanceof O, "cloned correct inheritance" );
var q = clone(p);
alert( q instanceof O, "clone-cloned correct inheritance" );
q.foo = "bar";
alert( p.foo, undefined, "clone-clone is copy-on-write" );
p.bar = "foo";
alert( o.bar, undefined, "clone is copy-on-write" );
alert( q.bar, "foo", "clone-clone has proper delegation" );
// unbind
p.func = bind(p.func, null);
alert( p.func(), "boring", "clone function calls correct" );
q.value = "awesome";
alert( q.func(), "awesome", "clone really does work" );
</script>
</pre>
</body>
</html>