Passing an array as a built-in function parameter in JavaScript

Question

I need to pass an array as built-in function. For example this works fine:

console.info('%cBlue text%c Red text', 'color:blue', 'color:red');

There are 3 parameters, but what should I do when I got n parameter?

var x = [ '%cBlue text%c Red text...%c nth-Text', 'color:blue', 'color:red', ... , 'nth-color:black']; 
console.info.apply(null, x);

does not work. Thanks in advance.

Denys Séguret · Accepted Answer · 2013-10-16 10:43:54Z

2

It fails because you pass null as context instead of the console object. This works :

console.info.apply(console, x);

More generally, you can use apply for your own functions too, but when they need a context, you must set it.

answered Oct 16, 2013 at 10:38

Denys Séguret

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1 Comment

Thank you dystroy, i got the idea.