RGB to Hex in single line of code

I found a very cool and short method to convert RGB color to Hex code. So here is a function that takes RGB components and return the corresponding Hex code:

function RGBToHex (r, g, b) {
    return '#' + ((1<<24) | (r<<16) | (g<<8) | b).toString(16).slice(1)
}

Neat huh?