CodingForums.com - View Single Post - difference between 'is null' and '= null'

Old Pedant · 02-25-2013, 10:18 PM

YES! I think I wish that JS disallowed using null with == and !=. I certainly admit to sloppily using them way too often.

I *REALLY* dislike code that does stuff such as

Code:

if ( ! document.getElementsByClassName ) { ... }

because it implies that a method reference is a boolean value. I think you should *HAVE* to write

Code:

if ( document.getElementsByClassName === null ) { ... }

Ah, well.

02-25-2013, 10:18 PM	PM User \| #7
Old Pedant Supreme Master coder! Join Date: Feb 2009 Posts: 23,210 Thanks: 59 Thanked 3,996 Times in 3,965 Posts	YES! I think I wish that JS disallowed using null with == and !=. I certainly admit to sloppily using them way too often. I REALLY dislike code that does stuff such as Code: if ( ! document.getElementsByClassName ) { ... } because it implies that a method reference is a boolean value. I think you should HAVE to write Code: if ( document.getElementsByClassName === null ) { ... } Ah, well. __________________ An optimist sees the glass as half full. A pessimist sees the glass as half empty. A realist drinks it no matter how much there is.