Benchmark: endOf vs cascading equality

Script Preparation code:

const prefixes = ["apple", "orange", "mango", "banana", "strawberry", "tomato", "cherry", "grape", "onion", "watermellon"];
const suffixes = ["bad", "good"];

const rand = (n) => Math.floor(Math.random() * n);
const randomStringCount = 1000000;
const randomBufferOfStrings = new Array(randomStringCount);
for (let i = 0; i < randomStringCount; i++) {
  randomBufferOfStrings[i] = prefixes[rand(prefixes.length)] + suffixes[rand(suffixes.length)];
}
window.randomBufferOfStrings = randomBufferOfStrings;

Tests:

chained equality check
let badCount = 0; for (let str of randomBufferOfStrings) { if (str === "applebad" || str === "orangebad" || str === "mangobad" || str === "bananabad" || str === "strawberrybad" || str === "tomatobad" || str === "cherrybad" || str === "grapebad" || str === "onionbad" || str === "watermellonbad") { badCount++; } } console.log(badCount);
endsWith class matching
let badCount = 0; for (let str of randomBufferOfStrings) { if (str.endsWith("bad")) { badCount++; } } console.log(badCount);

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
chained equality check
endsWith class matching

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 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/80.0.3987.122 Safari/537.36

Browser/OS: Chrome 80 on Windows

View result in a separate tab

Test name	Executions per second
chained equality check	11.3 Ops/sec
endsWith class matching	25.1 Ops/sec

endOf vs cascading equality (version: 0)

Test whether it is prohibitive to use endsWith to match a class of strings vs listing all of those items in an if

Comparing performance of: chained equality check vs endsWith class matching

Created: 4 years ago by: Guest

Jump to the latest result

chained equality check

endsWith class matching

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A