Question

In JavaScript, I want to compare a value for (strict) equality to false.

From Java / C# I am used to writing:

if (!value)
   //Do Something

However, I can not use it in JavaScript as null, undefined (and others IMHO) evaluate to false inside an if-statement, too. (I don’t want that).

Thus, I have therefore been writing the following to formulate such a check:

if (value === false)
   //Do Something

Yet, this construct looks a little bit strange to me.
Are there any more elegant ways here (which lead to the same results as the === false of course)?

Introducing a method isFalse would be an option, of course, but that’s not what I am looking for as it would look even more distracting than the === false.

Answer 1

Please, don’t write a function isFalse() (a candidate for The Daily WTF), use the === operator even if it looks strange to you, there is no cleaner way.