modify an array javascript code example

Example 1: modify array js

let newArray = oldArray.map(funcToEachElem);

Example 2: js array modify element

people[0] = "Georgie";

Example 3: how to modify an array

let browsers = ['chrome', 'firefox', 'edge'];
browsers.shift(); // "chrome"
console.log(browsers); // ["firefox", "edge"]