JSFiddle - React, Tailwind, and code Playground

by Travis Smith

JavaScript

var arr1 = [1, 2, 3, 4, 5, 6];

var arr2 = arr1;  // Reference arr1 by another variable 

arr1.length = 0;

console.log('array2:' + arr2); // Output [1, 2, 3, 4, 5, 6]

var ar = [1, 2, 3, 4, 5, 6];

console.log('ar:' + ar); // Output [1, 2, 3, 4, 5, 6]

ar.length = 0;

console.log("ar: " + ar); // Output []