Table of Contents
How do I convert a string to a number in Ruby?
The String objects in Ruby have several methods to convert the string object into a number.
- to_i will convert the String to an Integer.
- to_f will convert the String to an Float, a floating pont.
- to_r will convert the String to a Rational number.
- to_c will convert the String to a Complex number.
How do you convert 1011 binary to hexadecimal?
[ Input a binary number like 1110 in the following field and click the Convert button. ]…Binary to hex conversion table.
| Binary | Hex |
|---|---|
| 1011 | B |
| 1100 | C |
| 1101 | D |
| 1110 | E |
What is unpack in Ruby?
unpack(p1) public. Decodes str (which may contain binary data) according to the format string, returning an array of each value extracted. The format string consists of a sequence of single-character directives, summarized in the table at the end of this entry.
Which of these is the binary number 11 when converted to hexadecimal?
1011
Hexadecimal Numbers
| Decimal Number | 4-bit Binary Number | Hexadecimal Number |
|---|---|---|
| 11 | 1011 | B |
| 12 | 1100 | C |
| 13 | 1101 | D |
| 14 | 1110 | E |
How do you convert an object to a string in Ruby?
Summary
- Two methods are allowing us to be like a string:
- join method uses under the hood to_str method if it is implemented.
- puts method always uses under the hood to_s method.
- join and puts methods calls to_str and to_s methods on each element of the array not on the array it’s self.
How do I convert a string to an array in Ruby?
The general syntax for using the split method is string. split() . The place at which to split the string is specified as an argument to the method. The split substrings will be returned together in an array.
What is TO_S in Ruby?
to_s method is define in Object class and hence all ruby objects have method to_s . Certain methods always call to_s method. For example when we do string interpolation then to_s method is called. to_s is simply the string representation of the object.