3.7 + 1,3
"b" + "a" + +"a" + "a"
9999999999999999 % 100
JSON.stringify("js") == "js";
<html> <head> <script> var name = null; console.log(typeof name); </script> </head> </html>
null == 0
let x = 0 async function test() { x += await 2 console.log(x) } test() x += 1 console.log(x)
[] == ![]
('3' - 1) + ('3' + 1)
typeof Number('one') === typeof 1
with (Math) { 1/-0*!0 === 9e9*+max()??NaN }
let a = 1 { setTimeout(() => a = 2, 0) console.log(a) let a = 3 }
Number.prototype.isOne = function() { return this === 1 }; (1).isOne()
typeof null
[,,].toString()
0.1 + 0.2 === 0.3
[123] == [123]
Number.prototype.two = () => 2 ;[1..two].map(three => three())
parseInt(0.00000032) + parseInt(0.99999999)