Run results for: Som vs findIndex

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/76.0.3809.100 Safari/537.36

Browser: Chrome 76

Operating system: Mac OS X 10.14.5

Device Platform: Desktop

Date tested: 4 years ago

Test name	Executions per second
Some	37014.5 Ops/sec
findIndex	48311.1 Ops/sec

Script Preparation code:

var hasZero = [];
var withoutZero = [];
for (var i = 0; i < 10000; i++) {
  hasZero.push({ num: Math.floor(Math.random() * 1000) });
  withoutZero.push({ num: Math.floor(Math.random() * 1000) + 1 })
}

Tests:

Some
var tempResult = !!Math.round(Math.random()) ? hasZero.some(v => v.num === 0) : withoutZero.some(v => v.num === 0);
findIndex
var tempResult = !!Math.round(Math.random()) ? hasZero.findIndex(v => v.num === 0) > -1 : withoutZero.findIndex(v => v.num === 0) > -1;

Run results for: Som vs findIndex

Some

findIndex