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In javascript which operation requires more work for the browser?
var variable1;
// Operation 1
variable1 = 8;
// Operation 2
if (variable1 != 8) {
}
According to this jsPerf test that I just made, assignment is much faster than comparison — sometimes by an order of magnitude, depending on your browser.
I observed a weird bug in Firefox where the operations per minute result for assignment was sometimes reported as “Infinity”. If that happens, simply run the test again.