How to go through an array javascript code example
Example 1: loop through array javascript
/* ES6 */
const cities = ["Chicago", "New York", "Los Angeles"];
cities.map(city => {
console.log(city)
})
Example 2: javascript loop through array
// looping through an array in javascript using our own myEach function
// Write an `Array.prototype.myEach(callback)` method that invokes a callback
// for every element in an array and returns undefined.
Array.prototype.myEach = function(callback) {
for (let i = 0 ; i < this.length ; i ++) {
callback(this[i]);
}
}
let array = ['Item 1', 'Item 2', 'Item 3', 'Item 4'];
array.myEach(function (element) {
console.log(element); // this will print each element in the array
// Code to do something to each element in the array
});