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hex

hex(n, [pad])

Convert an integer to a hexadecimal string, optionally specifying a number of digits to pad to.

Examples

• Convert an integer to a hexadecimal string:

  julia> hex(15)
  "f"

  This example converts the decimal number 15 to its hexadecimal representation, which is "f".

• Specify a number of digits to pad to:

  julia> hex(10, 4)
  "000a"

  In this example, the decimal number 10 is converted to hexadecimal with a padding of 4 digits. The resulting hexadecimal string is "000a".

julia> hex(255, 2)
"ff"

Here, the decimal number 255 is converted to hexadecimal with a padding of 2 digits. The resulting hexadecimal string is "ff".

Common mistake example:

julia> hex(12.5)
ERROR: MethodError: no method matching hex(::Float64)

In this example, the hex function is called with a floating-point number, which is not a valid argument type. The hex function only works with integer arguments. Make sure to pass an integer to the hex function to avoid such errors.

See Also

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