Benchmark: Array HashMap comparison

Script Preparation code:

const long_text = "the the the the the Ladies others the six desire age. Bred am soon park past read by lain. As excuse eldest no moment. An delight beloved up garrets am cottage private. The far attachment discovered celebrated decisively surrounded for and. Sir new the particular frequently \
indulgence excellence how. Wishing an if he sixteen visited tedious subject it. Mind mrs yet did quit high even you went. Sex against the two however not nothing prudent colonel greater. Up husband removed parties staying he subject mr. \
Shot what able cold new the see hold. Friendly as an betrayed formerly he. Morning because as to society behaved moments. Put ladies design mrs sister was. Play on hill felt john no gate. Am passed figure to marked in. Prosperous middletons is ye inhabiting as \
assistance me especially. For looking two cousins regular amongst. \
Do commanded an shameless we disposing do. Indulgence ten remarkably nor are impression out. Power is lived means oh every in we quiet. Remainder provision an in intention. Saw supported too joy promotion engrossed propriety. Me till like it sure no sons. \
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garden result summer set family esteem nay estate. End admiration mrs unreserved discovered comparison especially invitation. \
Friendship contrasted solicitude insipidity in introduced literature it. He seemed denote except as oppose do spring my. Between any may mention evening age shortly can ability regular. He shortly sixteen of colonel colonel evening cordial to. Although jointure an my \
of mistress servants am weddings. Age why the therefore education unfeeling for arranging. Above again money own scale maids ham least led. Returned settling produced strongly ecstatic use yourself way. Repulsive extremity enjoyment she perceived nor. \
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me if agreeable. Life lain held calm and true neat she. Much feet each so went no from. Truth began maids linen an mr to after. \
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winter see. Oh be me sure wise sons no. Piqued ye of am spirit regret. Stimulated discretion impossible admiration in particular conviction up. \
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Is he staying arrival address earnest. To preference considered it themselves inquietude collecting estimating. View park for why gay knew face. Next than near to four so hand. Times so do he downs me would. Witty abode party her found quiet law. They door four bed fail now have. ";

const words = long_text.split(/\s+/);
var array = [];
var hashMap = {};
for (let word of words) {
  array.push(word);
  hashMap[word]= (hashMap[word] || 0) + 1;
}

Tests:

HashMap#in
const result = 'Impression' in hashMap;
HashMap#property
const result = hashMap.Impression;
HashMap#hasOwnProperty
const result = hashMap.hasOwnProperty('Impression');
Array#includes
const result = array.includes('Impression');
Array#indexOf
const result = array.indexOf('Impression') !== -1;

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
HashMap#in
HashMap#property
HashMap#hasOwnProperty
Array#includes
Array#indexOf

Fastest: N/A

Slowest: N/A

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Latest run results:

Run details: (Test run date: 4 years ago)

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/79.0.3945.130 Safari/537.36 OPR/66.0.3515.44

Browser/OS: Opera 66 on Linux

View result in a separate tab

Test name	Executions per second
HashMap#in	11386200.0 Ops/sec
HashMap#property	12782340.0 Ops/sec
HashMap#hasOwnProperty	10857200.0 Ops/sec
Array#includes	14160820.0 Ops/sec
Array#indexOf	1793391.0 Ops/sec

Array HashMap comparison (version: 2)

Comparing performance of: HashMap#in vs HashMap#property vs HashMap#hasOwnProperty vs Array#includes vs Array#indexOf

Created: 4 years ago by: Registered User

Jump to the latest result

HashMap#in

HashMap#property

HashMap#hasOwnProperty

Array#includes

Array#indexOf

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A