JSFiddle - React, Tailwind, and code Playground
by Khalil Zhang
JavaScript
document.write('+undefined: ' + +undefined + '<br/>');
document.write('+null: ' + +null + '<br/>');
document.write('+true: '+ +true + '<br/>');
document.write('+false: '+ +false + '<br/>');
document.write('+{}: '+ +{} + '<br/>');
document.write('+[]:'+ +[] + '<br/>');
document.write('+[1]:'+ +[1] + '<br/>');
document.write('+[1,2]'+ +[1, 2] + '<br/>');