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instance method
String#hex
() -> ::Integer
hex → integer
string.c
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static VALUE
rb_str_hex(VALUE str)
{
return rb_str_to_inum(str, 16, FALSE);
}
Interprets the leading substring of self as a string of hexadecimal digits (with an optional sign and an optional 0x) and returns the corresponding number; returns zero if there is no such leading substring:
Example
'0x0a'.hex # => 10 '-1234'.hex # => -4660 '0'.hex # => 0 'non-numeric'.hex # => 0
Related: String#oct.