s["l"] = "L"; # Replace first occurrence of "l" with "L" end # Now we have "heLLo" Finally, you can index a string using a regular expression. (Regular expression objects are covered in §9.2.) The result is the first substring of the string that matches the pattern, and again...
The []= operator allows you to alter the characters of a string or to insert, delete, and replace substrings. The << operator allows you to append to a string, and the String class defines various other methods that alter strings in place. Because strings are mutable, string literals in ...
In this tutorial, you’ll use string methods to determine the length of a string, index and split strings to extract substrings, add and remove whitespace and other characters, change the case of characters in strings, and find and replace text. When you’re done, you’ll be able to inc...
2 Simplify series of string manipulations in Ruby 4 C-string manipulation 16 Faster JavaScript fuzzy string matching function? 1 Ruby string splicer 3 Conditional string building in Ruby 0 Most common letter in string, trying to use idiomatic Ruby 3 Avoid iteration on complete list to ...
In assigning a substring, only the first match is replaced. Another string method, like replace(), can be used to replace all matching instances. value = "one one one" # Replace first instance of this substring. value["one"] = "two" puts value # A regexp also replaces the first (...
ruby-in-parallel (1.0.1-1) [universe] lightweight Ruby library with very simple syntax for parallelization ruby-indentation (0.1.1-2.1) [universe] Ruby extensions for Array and String classes ruby-inflecto (0.0.2-1.1) [universe] Ruby library to transform words from singular to plural ruby-in...
There’s one other common encoding you might use in Ruby: ASCII-8BIT. In ASCII-8BIT, every character is represented by a single byte. That is,str.chars.length == str.bytes.length. So, if you want a lot of control over the specific bytes in your string, ASCII-8BIT might be a goo...
In addition, we built a VFS on top of WASI so that we can easily pack Ruby apps into a single .wasm file. This makes distribution of Ruby apps a bit easier. Related links Add WASI based WebAssembly support #5407 An Update on WebAssembly/WASI Support in Ruby ...
The regular expression in this line consists of three character classes. Each is for one character. The [abc] is either a, b, or c. The [a] is only a. The third one, [rs], is either r or s. There is a match with the 'car' string. p "car".match /[a-r]+/ ...
{and}deserve a bit of clarification, since they are used for block and hash literals, as well as string interpolation. For hash literals two styles are considered acceptable. The first variant is slightly more readable (and arguably more popular in the Ruby community in general). The second ...