[JavaScript] forEach()

var alpha = ['a', 'b', 'c', 'd'];
alpha.forEach(function (item, index, array) {
    console.log(item, index);
});
//a 0
//b 1
//c 2
//d 3

 

 

Reference

https://developer.mozilla.org/ko/docs/Web/JavaScript/Reference/Global_Objects/Array/forEach

Array.prototype.forEach()