Does jQuery do some magic with the `this` variable?

Question

jQuery has gotten us used to the following this pattern:

$(selector).each(function () {
     // do something with `this`
     // `this` iterates over the DOM elements inside `$(selector)`
});

According to this Crockford talk (about 15 minutes in) the value of this inside a function that is not called with the new operator is the global object, except for ES5 strict mode in which case it is undefined.

Does jQuery do some magic with this to get it to something other than the global object? Please point to specific lines of the source code.

Answer 1

jQuery uses the 100% non-magical Function.call method to call the callback with a specific this.