Run results for: indexOf vs for

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_3) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.99 Safari/537.36

Browser: Chrome 67

Operating system: Mac OS X 10.13.3

Device Platform: Desktop

Date tested: 5 years ago

Test name	Executions per second
indexOf	2881000.0 Ops/sec
Match	2042591.0 Ops/sec
For	12001660.0 Ops/sec

Script Preparation code:

var arrays = ['date1', 'date2', 'date3', 'date4', 'date5', 'date6', 'date7', 'date8', 'date9', 'date10', 'date11', 'date12', 'date13', 'date14', 'date15'],
    fullDates= 'date1date2date3date4date5date6date7date8date9date10date11date12date13date14date15',
    i =0,
    j = arrays.lenght,
    isThere = false,
    val = 'date8';

Tests:

indexOf
isThere = fullDates.indexOf(val) >= 0;
Match
isThere = fullDates.match(val);
For
for(i; i < j; i++) { if(arrays[i] === val) { isThere = true; breake; } }

Run results for: indexOf vs for

indexOf

Match

For