Quickie: shortened "for" and "if"

If

Today after debugging minified JS code I discovered an interesting way to write ifs:

var i = 0;
var s = 'foo';

if (s === 'bar') {
    i = 1;
}

can also be written:

var i = 0;
var s = 'foo';

(s === 'bar') && (i = 1);

For

Shorthand for for cycle. Not that you should use it like this.

for (var $i = 0, $j = 0; $i < 3, $j < 4; console.log($i * $j), $j+=2, $i++ );

Tags:
#quickie #if #short #for