Run results for: comparing for vs map vs forEach methods

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/71.0.3578.80 Safari/537.36

Browser: Chrome 71

Operating system: Linux

Device Platform: Desktop

Date tested: 5 years ago

Script Preparation code:

// Create sample data
var array = [1,2,3,4,5,6,7,8,9,0];

var manipulateFn = num => {
	return num * 2 * 3;
}

Tests:

for
var newArray = []; for(var i=0; i < array.length; i++) { newArray.push(manipulateFn(i)); };
map
var newArray = array.map( i => manipulateFn(i));
forEach
var newArray = []; array.forEach( i => { newArray.push(manipulateFn(i)); });