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JavaScript

Posted by Fareez Ahmed
Fareez Ahmed
12,728 Points

Difference between call apply and bind

Hi, I'm looking for someone to help me understand the difference between these functions in JS. I understand that call and apply allow you to set the context of 'this', only difference is how the arguments are supplied. Does bind do the same thing (with arguments provided like apply), but is for 'reusable' functions that aren't anonymous/created at runtime?

Yvonne Wood

1 Answer

Hunter Cassidy
Hunter Cassidy
5,674 Points

So you seem to understand the different between call and apply, one takes a list of arguments and one takes an array that contains the arguments. Bind returns a new function that is bound to a separate 'this' value.

Call and apply invoke a function on a different 'this' value with the supplied arguments where as bind returns a new function that happens to be assigned a different this value.

I hope that helps.