In JavaScript (and almost all other programming languages), 0x is used to indicate that all subsequent characters should be interpreted as hexadecimal (base 16 number system). For example:
console.log(0x20); // 32 console.log(0x6b6c); // 27500
You can also convert a number into its corresponding hexadecimal value in the following way:
console.log(Number(32).toString(16)); // '20' console.log(Number(27500).toString(16)); // '6b6c'
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