var zero = 0;
console.log(zero == false);
<section>
<header>
<blink>
<main>
<div class="parent" style="font-size:20px;">
<div class="child" style="font-size: 0.7em" >hello</div>
</div>
console.log(0 === -0);
console.log({}.toString())
var bigLinks = $('a.big');
<ul>
<li>Robb</li>
<li>Sansa</li>
<li>Arya</li>
<li>Brandon</li>
<li>Rickon</li>
</ul>
var result = "ten" * 2;
console.log(result == NaN);
var globalVar = "global";
function test1() {
console.log(globalVar);
return;
var globalVar;
}
test1();
<div>
<p>Robb</p>
<span>Theon</span>
<p>Sansa</p>
<p>Arya</p>
<p>Brandon</p>
<p>Rickon</p>
</div>
typeof NaN
console.log(2.toFixed(2))
console.log(parseInt(1/0, 19))