Run results for: Test replace vs substring vs slice for removing + from phone number

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/145.0.0.0 Safari/537.36

Browser: Chrome 145

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 4 months ago

Slice

1K/s

Substring

977/s

Substring hardcoded

733/s

Slice hardcoded

729/s

Replace

143/s

View exact numbers

Test name	Executions per second
✓ Slice	1,380 Ops/sec
Substring	977 Ops/sec
Substring hardcoded	733 Ops/sec
Slice hardcoded	729 Ops/sec
Replace	143 Ops/sec

HTML Preparation code:

<!--your preparation HTML code goes here-->

Script Preparation code:

var numOfStrings = 100000
var prefix = '+'
var testStrings = []

function phones() {
   return Math.random() * (19999999999 - 10000000000) + 10000000000;
}

for (let i = 0; i < numOfStrings; i++) {
  testStrings.push(prefix + phones())
}

Tests: