Is there an inline operator that only does something if the value is true?

Question

I've found myself writing a lot of code similar to this: ``` $('.selector').addClass(condition ? 'class' : ''); ``` I know this may be silly and whiny, but I was just curious if there was a way to do that without the false condition in Javascript. I've looked around and haven't really found any operator that can do that, but I could be (and hope I am) wrong. I'm not necessarily looking to optimize my code, this is just curiosity :) Thanks.

Accepted Answer

JavaScript's `&&` operator short-circuits. You'll see something like this used commonly in a number of scripts and libraries:

```
condition && $('.selector').addClass('class');
```

Or as mgibsonbr's comment states, you can simply `&&` within the method itself:

```
$('.selector').addClass(condition && 'class');
```

It's much less intuitive, though, as it's not a commonly-known fact that `a && b` results in `b` in JavaScript when both values are truthy, and not `true` unlike in other languages.

Is there an inline operator that only does something if the value is true?

Solution

Problem