JSFiddle - React, Tailwind, and code Playground

by victorwoo

JavaScript

var x = [ 0, 3, 1, 2 ];
document.write(x + "<br/>");
x.reverse()      // [ 2, 1, 3, 0 ]
document.write(x + "<br/>");
x.join(" – ")    // "2 - 1 - 3 - 0"
document.write(x + "<br/>");
x.pop()          // [ 2, 1, 3 ]
document.write(x + "<br/>");
x.unshift( -1 )  // [ -1, 2, 1, 3 ]
document.write(x + "<br/>");
x.shift()        // [ 2, 1, 3 ]
document.write(x + "<br/>");
x.sort()         // [ 1, 2, 3 ]
document.write(x + "<br/>");
x.splice( 1, 2 ) // [ 2, 3 ]
document.write(x + "<br/>");