Get a lenght of Number in JavaScript

Asked Oct 11 '19 at 05:58

Active Oct 11 '19 at 06:08

Viewed 72 times

I found a code on the internet how to get length of a number in javascript.

var month = '10';

//(1)
 month.toString.length    
// =>  return 1
//(2)
 month.toString().length   
// =>  return 2

I knew (2) is right. But I couldn't find what's difference between (1), (2).

Can you tell me the difference between (1) and (2)?

asked Oct 11 '19 at 05:58

YOUNG MIN CHO

`()` is required to invoke a function. Without that, you're just referencing the function – CertainPerformance Oct 11 '19 at 06:00
1

https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Function/length – Saurabh Agrawal Oct 11 '19 at 06:03
1

@CertainPerformance seems like OP wants to know the difference between `toString().length` and `toString.length`. Kindly check above link. – Saurabh Agrawal Oct 11 '19 at 06:06
`func.length` actually returns the number of parameter it requires. – Saurabh Agrawal Oct 11 '19 at 06:07

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