comments Arrays are usually useful when working with arbitrarily large number of data having the same type.
It is usually convenient if we can print the contents of an array.
You can also watch a video to see how the visual regex tester works.
The basic language constructs include character classes, quantifiers, and meta-characters. Match any character (except newline) $ Match the end of the line (or before newline at the end) | Alternation (‘or’ statement) () Grouping  Custom character class These two meta-characters are core parts of flexible regular expressions.
Character classes are used to define the content of the pattern. For instance, in the first example we lost our wallet.
The first lines of a method are usually devoted to checking the validity of method arguments.
The idea is to fail as quickly as possible in the event of an error. It's a reasonable policy for a class to skip validating arguments of © 2017 Hirondelle Systems | Source Code | Contact | License | RSS Individual code snippets can be used under this BSD license - Last updated on September 21, 2013.