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f1b4f9a Feb 1, 2012
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<!doctype html>
<html lang="en">
<head>
<title>JavaScript Patterns</title>
<meta charset="utf-8">
</head>
<body>
<script>
/* Title: Module Pattern
Description: all the methods are kept private and you only expose those that you decide at the end
*/
var MYAPP = MYAPP || {};
MYAPP.namespace = function (ns_string) {
var parts = ns_string.split('.'),
parent = MYAPP,
i;
// strip redundant leading global
if (parts[0] === "MYAPP") {
parts = parts.slice(1);
}
for (i = 0; i < parts.length; i += 1) {
// create a property if it doesn't exist
if (typeof parent[parts[i]] === "undefined") {
parent[parts[i]] = {};
}
parent = parent[parts[i]];
}
return parent;
};
MYAPP.namespace('MYAPP.utilities.Array');
MYAPP.utilities.array = (function () {
// private properties
var array_string = "[object Array]",
ops = Object.prototype.toString,
// private methods
inArray = function (haystack, needle) {
for (var i = 0, max = haystack.length; i < max; i += 1) {
if (haystack[i] === needle) {
return i;
}
}
return -1;
},
isArray = function (a) {
return ops.call(a) === array_string;
};
// end var
// revealing public API
return {
isArray:isArray,
indexOf:inArray
};
}());
// Modules That Create Constructors
var MYAPP = MYAPP || {};
MYAPP.namespace = function (ns_string) {
var parts = ns_string.split('.'),
parent = MYAPP,
i;
// strip redundant leading global
if (parts[0] === "MYAPP") {
parts = parts.slice(1);
}
for (i = 0; i < parts.length; i += 1) {
// create a property if it doesn't exist
if (typeof parent[parts[i]] === "undefined") {
parent[parts[i]] = {};
}
parent = parent[parts[i]];
}
return parent;
};
MYAPP.namespace('MYAPP.utilities.Array');
MYAPP.utilities.Array = (function () {
// dependencies
var uobj = MYAPP.utilities.object,
ulang = MYAPP.utilities.lang,
// private properties and methods...
Constr;
// end var
// optionally one-time init procedures
// ...
// public API -- constructor
Constr = function (o) {
this.elements = this.toArray(o);
};
// public API -- prototype
Constr.prototype = {
constructor:MYAPP.utilities.Array,
version:"2.0",
toArray:function (obj) {
for (var i = 0, a = [], len = obj.length; i < len; i += 1) {
a[i] = obj[i];
}
return a;
}
};
// return the constructor
// to be assigned to the new namespace
return Constr;
}());
var arr = new MYAPP.utilities.Array(obj);
</script>
</body>
</html>