I was surfing on the web in search of a shorthand Javascript notation for an if-statement. ONLY the if, not the else. My question: does it exist? eg:

(i === 0) ? onlyMyTrueValue;

The only snippet I seem to find is this one:

(i === 0) ? myTrueValue : myFalseValue;

I was surfing on the web in search of a shorthand Javascript notation for an if-statement. ONLY the if, not the else. My question: does it exist? eg:

(i === 0) ? onlyMyTrueValue;

The only snippet I seem to find is this one:

(i === 0) ? myTrueValue : myFalseValue;

• javascript

• 3 Google short-circuit evaluation. – Rob W Commented May 20, 2013 at 16:14
• 2 The shorthand way to write an if statement is if(i===0)somevar=someval; but you should let a JS minifier handle that. – zzzzBov Commented May 20, 2013 at 16:15

2 Answers 2

You can do:

(i === 0) && onlyMyTrueValue;

The right hand side of the above statement will execute only if the left hand side passes.

You could do (i === 0) && onlyMyTrueValue;, but you shouldn't, for readability sake.

Compare your original:

(i === 0) ? onlyMyTrueValue;

And plain old if:

if (i === 0) onlyMyTrueValue;

That's only one more character, and an identical number of characters to the && method. Go with the readable choice.