Run results for: check if variable in array has state (for vs foreach vs some vs for..of)

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64; rv:81.0) Gecko/20100101 Firefox/81.0

Browser: Firefox 81

Operating system: Linux

Device Platform: Desktop

Date tested: 3 years ago

Script Preparation code:

var array = new Array(100);
for (let i = 0; i < array.length; i++) {
 array[i] = 0; 
}

array[50] = 1;

Tests:

for
let isOne = false; for (var i = 0; i < array.length; i++) { if (array[i] === 1) { isOne = true; break; } }
foreach
let isOne = false; array.forEach(function(i) { if (array[i] === 1) { isOne = true; } });
some
let isOne = array.some(function(i) { return array === 1; });
for..of
let isOne = false; for (var i of array) { if (array[i] === 1) { isOne = true; } }