Benchmark: indexOf vs map - MeasureThat.net

Script Preparation code:

var array = [];
for (var i=0; i<100; ++i) {
  	array.push('00' + i);
}

function hasWithIndexOf(needle) {
	return array.indexOf(needle) !== -1;
}

var map = {};
array.forEach(item => map[item] = true);

function hasWithMap(needle) {
	return needle in map;
}

Tests:

indexOf
for (var i=0; i<100; ++i) { hasWithIndexOf('404'); }
map
for (var i=0; i<100; ++i) { hasWithMap('404'); }

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
indexOf
map

Fastest: N/A

Slowest: N/A

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Latest run results:

Run details: (Test run date: 2024 years ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_2) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/64.0.3282.140 Safari/537.36

Browser/OS: Chrome 64 on Mac OS X 10.13.2

View result in a separate tab

Test name	Executions per second
indexOf	26326.6 Ops/sec
map	51308.4 Ops/sec

indexOf vs map (version: 0)

Comparing performance of: indexOf vs map

Created: 6 years ago by: Guest

Jump to the latest result

indexOf

map

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A