duplicate an element javascript code example

Example 1: javascript duplicate an array

let arr =["a","b","c"];
// ES6 way
const duplicate = [...arr];

// older method
const duplicate = Array.from(arr);

Example 2: js clone element

// Syntax:
let newClone = node.cloneNode([deep])

// Example:
let p = document.getElementById("para1")
let p_prime = p.cloneNode(true)