Which equals operator (== vs ===) is faster?
Is there a performance benefit to replacing == with ===?
Date tested:
4 years ago
User agent:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/84.0.4147.89 Safari/537.36
Test name
Executions per second
test equality
12249.3 Ops/sec
test strict equality
12211.9 Ops/sec
Benchmark definition (click to collapse):
Tests:
test equality
var n = 0; while(true) { n++; if(n==100000) break; }
AخA
var
n
=
0
;
while
(
true
) {
n
++
;
if
(
n
==
100000
)
break
;
}
test strict equality
var n = 0; while(true) { n++; if(n===100000) break; }
var
n
=
0
;
while
(
true
) {
n
++
;
if
(
n
===
100000
)
break
;
}
Open this result on MeasureThat.net