Function definition by variable?

Asked Jul 07 '17 at 05:52

Active Jul 07 '17 at 05:52

Viewed 24 times

Can anyone explain to me the advantages of defining an anonymous function and assigning to a variable, contrary to defining by function name. Ie.

var add = function(a, b) { return a+b};
var result = add(1, 2);

Contrary to

function add(a, b) { return a+b };
var result = add(1, 2);

BTW I'm new to javascript but done a lot of C-style coding.

Best regards Ben

asked Jul 07 '17 at 05:52

Ben oBI 1

1

Two styles of writing the same thing... – Chava Geldzahler Jul 07 '17 at 05:54
Functions are Objects in JavaScript. Yo can do things like var addTwo = add.bind(var a, 2); Further you can assign a Self executing function to a variable so that not all variables are Part of the global scope – Matthias Herrmann Jul 07 '17 at 05:58
1

@ChavaG No it is different, if you assign a variable to a function and then you call it before the decleration in Code it is undefined due to hoisting. This behaviour is different from a "normal function" – Matthias Herrmann Jul 07 '17 at 06:03
@MatthiasHerrmann thanks ☺ – Ben oBI 1 Jul 07 '17 at 06:09
thanks for answering even if it's a duplicate ☺ Will look around before asking next time – Ben oBI 1 Jul 07 '17 at 06:11

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