Benchmark: Substring compare

Script Preparation code:

const strings = []
, length = 1000
, {substring} = ""
, args = [0, 3]
for (let i = 0; i < length; i++)
  strings[i] = btoa(Math.random()).substring(3)
  
function nop(_) {}

let x

Tests:

.substring
for (let i = 0; i < length; i++) { const str = strings[i] x = str.substring(0, 3) }
.substr
for (let i = 0; i < length; i++) { const str = strings[i] x = str.substr(0, 3) }
substring.call
for (let i = 0; i < length; i++) { const str = strings[i] x = substring.call(str, 0, 3) }
substring.apply
for (let i = 0; i < length; i++) { const str = strings[i] x = substring.apply(str, args) }
.slice
for (let i = 0; i < length; i++) { const str = strings[i] x = str.slice(0, 3) }
literal
for (let i = 0; i < length; i++) { const str = strings[i] x = `${str[0]}${str[1]}${str[2]}` }
addition
for (let i = 0; i < length; i++) { const str = strings[i] x = str[0] + str[1] + str[2] }

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
.substring
.substr
substring.call
substring.apply
.slice
literal
addition

Fastest: N/A

Slowest: N/A

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Latest run results:

Run details: (Test run date: 2 years ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/15.4 Safari/605.1.15

Browser/OS: Safari 15 on Mac OS X 10.15.7

View result in a separate tab

Test name	Executions per second
.substring	1512158.0 Ops/sec
.substr	2233049.0 Ops/sec
substring.call	2510340.0 Ops/sec
substring.apply	2524334.0 Ops/sec
.slice	2538968.0 Ops/sec
literal	2598867.0 Ops/sec
addition	2576300.0 Ops/sec

Substring compare (version: 0)

`.substring`, `.substr`, `slice`, `substring.call`, string literal, addition

Comparing performance of: .substring vs .substr vs substring.call vs substring.apply vs .slice vs literal vs addition

Created: 2 years ago by: Registered User

Jump to the latest result

.substring

.substr

substring.call

substring.apply

.slice

literal

addition

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A