Difference between jQuery.extend and jQuery.fn.extend?

Question

I am trying to understand the jquery plugin syntax, because I want to merge two plugins into one. The blinker that also needs to be able to stop de interval or run a number

Answer 1

jQuery.extend is used to extend any object with additional functions, but jQuery.fn.extend is used to extend the jQuery.fn object, which in fact adds several plugin functions in one go (instead of assigning each function separately).

jQuery.extend:

var obj = { x: function() {} }

jQuery.extend(obj, { y: function() {} });

// now obj is an object with functions x and y

jQuery.fn.extend:

jQuery.fn.extend( {
        x: function() {},
        y: function() {}
});

// creates 2 plugin functions (x and y)