Run results for: 1df693fa-fdb3-4a94-9030-2e979bfdcb09

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/112.0.0.0 Safari/537.36

Browser: Chrome 112

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: one year ago

Test name	Executions per second
one	12146110.0 Ops/sec
two	11984850.0 Ops/sec
three	15757670.0 Ops/sec

Script Preparation code:

function one(val) {
  return val.endsWith(".ts") || val.endsWith(".tsx")
}
function two(val) {
  const x1 = val.slice(-3);
  if(x1 === ".ts") return true;
  const x2 = val.slice(-4);
  if(x2 === ".tsx") return true;
  return false;
}

function three(val) {
  const L = val.length;
  if(val[L-3] === '.' && val[L-2] === 't' && val[L-1] === 's') return true;
  if(val[L-4] === '.' && val[L-3] === 't' && val[L-2] === 's' && val[L-1] === "x") return true;
  return false;
}

Tests:

one
one("hello world.tsx")
two
two("hello world.tsx")
three
three("hello world.tsx")