What is the execution order of if condition in JS

Question

Given:

if(arr[0]!=null && arr[0].value.toString()!="") {
    //do something
}

Does an if conditional statement return false immediately after the first statement fails? Or does it check the second condition regardless?

Cheers, Gavin :)

Answer 1

It depends. If you are checking values with AND (&&) and the first value is false, the condition would immediately evaluate to false because every condition has to evaluate to true.

If you are checking values with OR (||) and the first condition is false, the if statement would check every other condition until it finds a true value.