How I can create a thing which is both function and object at a same time?
Suppose its name is obj.
In the following context it is a object:
obj.key1 = "abc";
obj.key2 = "xyz";
And in another context it is a function like this:
var test = obj("abc");
How I can create this object in JavaScript?
function obj( param ){
var that = this;
that.key1 = "default";
that.key2 = "default";
that.someMethod = function(){
return param;
};
that.showMessage = function(){
alert( param );
};
return that;
}
and then:
var test = obj("hi there");
test.key1 = "abc";
test.key2 = "xyz";
test.showMessage();
FIDDLE: http://jsfiddle.net/Xnye5/
or
obj("hi there again").showMessage();
FIDDLE: http://jsfiddle.net/Xnye5/1
obj("hi there").showMessage() / firebug give me error : obj is not a functionobj("hi there").showMessage()jQuery object
.showMessage() method.Like this:
function obj( param ) {
console.log( param );
}
obj.prototype.key1 = "abc";
obj.prototype.key2 = "xyz";
var test = new obj( "abc" );
console.log( test.key1 );
console.log( test.key2 );
Key new needed to save function context. You can use return this in function to avoid this.
Or using this instead of prototype:
function obj( param ) {
console.log( param );
this.key1 = "abc";
this.key2 = "xyz";
}
var obj = function(param) {....}, just so one knows there are options, and in case he needs more than 1 of them.
function test(param) { alert(param); }, you could dotest.prop = 'testProp'