PHP "??" operator in javascript

Question

Easy question. Does exist something like php's ?? in javascript?

In php you can do condition ?? statement2

which is the same as condition? condition : statement2.

Is there something like that in javascript?

@JordanRunning similar answer, but not directly comparing PHP to JS — ps2goat, Jun 06 '18 at 19:13
@ps2goat In PHP `??` is called the [null coalescing operator](http://php.net/manual/en/migration70.new-features.php#migration70.new-features.null-coalesce-op). The linked question is "Null coalescing operator Javascript." It's literally the same question, and the accepted answer there answers OP's question exactly. — Jordan Running, Jun 06 '18 at 19:15
True, but people don't always know the official names of things, so that question may not show up in their search. — ps2goat, Jun 06 '18 at 19:22

Francesco · Accepted Answer · 2018-06-06T19:18:19.227

5

I would use the logical or operator (||)

console.log("true value" || "other")
console.log(false || "other")

This works because (source):

expr1 || expr2 Returns expr1 if it can be converted to true; otherwise, returns expr2

edited Jun 06 '18 at 19:18

answered Jun 06 '18 at 19:11

Francesco

score 0 · Answer 2 · answered Jun 06 '18 at 19:11

0

So, if condition is false, go with statement2.

That's as simple as condition || statement2

If condition is truthy, if will be selected. If not, statement2 will be evaluated.

answered Jun 06 '18 at 19:11

Devin Fields

2 Answers2