Run results for: Javascript string.endsWith vs string.slice and triple equal 2

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/115.0.0.0 Safari/537.36

Browser: Chrome 115

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: one year ago

Test name	Executions per second
endWith	4070914.8 Ops/sec
slice	4664534.0 Ops/sec
endsWith2	4130641.2 Ops/sec

Script Preparation code:

function compareEndsWith(val, comparator) {
  return val.endsWith(comparator)
}
function compareEndsWith2(val, comparator) {
  return val.endsWith(comparator, comparator.length)
}
function compareSliceMethod(val, comparator) {
  const thingToCompare = val.slice(-comparator.length)
  return thingToCompare === comparator
}

Tests:

endWith
const value = Math.random().toString().padEnd(20,'0'); const ending = "asdf" compareEndsWith(value, ending)
slice
const value = Math.random().toString().padEnd(20,'0'); const ending = "asdf" compareSliceMethod(value, ending)
endsWith2
const value = Math.random().toString().padEnd(20,'0'); const ending = "asdf" compareEndsWith2(value, ending)

Run results for: Javascript string.endsWith vs string.slice and triple equal 2

endWith

slice

endsWith2