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('NaN + "": ' + (NaN + "") + '<br/>');
document.write('{} + "": ' + ({} + "") + '<br/>');
document.write('[] + "": ' + ([] + "") + '<br/>');
document.write('[1] + "": ' + ([1] + "") + '<br/>');
document.write('[1,2,3] + "": ' + ([1,2,3] + "") + '<br/>');
document.write('function() {} + "": ' + (function() {} + "") + '<br/>');