Question

Does jQuery provides a API to call functions binding the this variable to the jQuery object? E.g.:

function log() {
    console.log(this);
}

$('body').execute(log); // prints the $('body') object in the console

I know that this could be solved by making the log a plugin, but I don’t want to do that because the function I need to call is generic and I don’t want to tie it to jQuery.

EDIT:

jQuery has no execute method, its just a snippet I added to demonstrate what I am trying to achieve.

EDIT 2:

I am not asking how to workaround this problem (underscore.js bind already got me covered), I am only asking if jQuery already provides a similar API.

Answer 1

You can do this “without” having jQuery to implement anything, just “flip” things around a bit and use function-name.apply (object, arguments)

function func (arg1, arg2) {
   console.log ("ARG1: " + arg1);
   console.log ("ARG2: " + arg2);
   console.log ("using this: " + this.html ().length + "\n");
}

func.apply ($('body'), ['abc','123']);
func.apply ($('body')); // 2nd argument is optional

output

ARG1: abc
ARG2: 123
using this: 51645

ARG1: undefined
ARG2: undefined
using this: 51645