JS: Number Input. Binary, Hexadecimal, Octal, Etc

// hexadecimal notation
console.log(0xff === 255);
// true

// octal notation
console.log(0o777 === 511);
// true

// binary
console.log(0b11001 === 25);
// true

// scientific notation
console.log( 9e2 )
// 900