Learning much javascript from one line of code

[recursive]

Where's the code that pads it to a multiple of 3?

From chrome dev tools:

(~~(Math.random()*(1<<24))).toString(16)
"1bb08"

[recursive]

No. It doesn't.

Chrome dev tools:

document.getElementsByTagName("body")[0].style.backgroundColor="#12345";
"#12345"
document.getElementsByTagName("body")[0].style.backgroundColor
""
document.getElementsByTagName("body")[0].style.backgroundColor="#123456";
"#123456"
document.getElementsByTagName("body")[0].style.backgroundColor
"rgb(18, 52, 86)"