In JavaScript, does an if with multiple or's evaluate all statements before continuing? [duplicate]

Question

In Javascript, specifically Google's V8 engine, does writing multiple function calls in a list of or conditions '||' execute all of the functions before determining the final result of the if comparison?

e.g.

var path = 'C:\\MyFiles\\file.doc';
if (   path.match(/\.docx?/gi)
    || path.match(/\.xlsx?/gi)
    || path.match(/\.xml/gi)
    || path.match(/\.sql?/gi)) {

    // Success
} else {
    // Failed
}

So I would like to ask: Is this similar^† to how the '&&' conditions work, but the opposite? Will the first condition evaluating to TRUE cause the remaining to be skipped and the Success logic to be executed?

I cannot find this stated in any documentation that I am looking for. It is not like this will make a huge difference, however I am curious as to how this is actually executing.

^†(By similar to the And '&&' I mean that the first condition evaluating to FALSE will stop the remaining conditions from executing and proceed to following else.)

Answer 1

You're right. It's called short circuit evaluation, and it applies to both || and &&.

For ||, evaluation of the right hand side takes place only if the left hand side evaluates to false.

For &&, evaluation of the right hand side takes place only if the left hand side evaluates to true.

Note that it's not just for performance. It also prevents errors from occurring: sometimes evaluating the right hand side would be unsafe or meaningless if the left hand side were not as expected.