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what does 0X mean? I saw it mentioned in class, but my teacher had no idea either. Is it synonymous to the word hexadecimal or does it mean all values? Thanks for your help guys!
338
The prefix 0x is used in code to indicate that the number is being written in hex. But what is 'B' doing in there? The hexadecimal format has a base of 16, which means that each digit can represent up to 16 different values.
0x is hexadecimal (base 16). Without the 0x you get decimal (base 10).
The 0x is just a notation to let you know the number is in hexadecimal form. Same as you'd write 042 for an octal number, or 42 for a decimal one.
Hexadecimal is the base-16 number system, as opposed to the base 2 system (binary) and base 10 system (decimal). The prefix we use for hexadecimal is "0x". To represent the numbers 0-9, we simply use those digits.
Yes, it means the following value is in hexadecimal:
var num = 0xFF; //255 - 1111 1111
It means the subsequent characters in the token should be interpreted as heXadecimal
0x20
means the decimal value
32
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