I found a Module pattern in JS:
<script>
var MODULENAME = (function(my, $) {
my.publicVar = "5";
my.publicFn = function() {};
return my;
}(MODULENAME || {}, jQuery));
</script>
However I cannot perform instantiation. Does the module pattern allow for that?
Instantiantion means basically that you'll run a function using new.
So maybe you're looking for this?
var Some = function (param) {
var somePrivateVar = 'private';
this.somePublicVar = 'public';
this.method = function () {
return param;
};
};
var some = new Some('abla');
console.log(some.method());
// some.somePrivateVar === undefined
// some.somePublicVar === 'public'
In your case MODULENAME is an object (object, not a function) with publicVar and publicFn. It's not meant to be instantiated the same way you wouldn't call new jQuery().
Your module object can contain anything. Perhaps you're looking for including a constructor in it:
var MODULENAME = (function(my, $) {
var privateVar = 10;
my.SomeConstructor = function() {
this.publicVar = 5;
}
my.SomeConstructor.prototype.someMethod = function() {};
my.SomeConstructor.prototype.getPrivate = function() { return 10; };
return my;
}(MODULENAME || {}, jQuery));
var instance = new MODULENAME.SomeConstructor();
instance.publicVar; // 5
instance.privateVar; // undefined
instance.getPrivate(); // 10
You can do this also with prototype Inheritance :
var MyClass = function(name)
{
//sharing name within the whole class
this.name = name;
}
MyClass.prototype.getName = function(){
return this.name;//now name is visible to getName method too
}
MyClass.StaticMethod = function()
{
console.log("Im Static");
// and since is not in prototype chain, this.name is not visible
}
var myclass = new MyClass("Carlos");
console.log(myclass.getName())//print "Carlos"
MyClass.StaticMethod()// print "Im Static"
myclass.StaticMethod() // error
Se all this article
instantiation? You have essentially created a static class within the var.