What is “?:” notation in JavaScript?

Question

I found this snippet of code in my travels in researching JSON:

var array = typeof objArray != \'object\' ? JSON.parse(objArray) : objArray;

<

Answer 1

It's the ternary conditional operator -- basically,

if (condition) {
   a = 4;
}
else {
   a = 5;
}

becomes

a = condition ? 4 : 5;