joaopcm/regular-expressions

Regex study

Tip: use Regex101 website to create your regular expressions :)

Example 1

Regex:

^\d{3}.\d{3}.\d{3}-\d{2}$

Data:

123.123.123-12

321.123.345-20

200.300.500-19

Removing special chars:

Replace [.-] with empty

---

Example 2

Regex:

^(\w+),\s(\w+)$

Data:

Melo, Joao

Wendel, Erick

Gomes, Rhaiany

Generate a JSON with first and last names:

Replace ^(\w+),\s(\w+)$ with {firstName: "$2", lastName: "$1"}

Example 3

Regex:

\[(.*?)\]\(([http|https].*?)\)

Data:

[Erick Wendel](https://erickwendel.com) faz palestras e você deveria seguí-lo lá no [Twitter](http://twitter.com/erickwendel_) ou até no [Instagram](https://instagram.com/erickwendel_)

Ah, e você pode também pesquisar no [Google](https://google.com) ou
[Yahoo](https://yahoo.com)

Vai que vai!

Generate an HTML based on the markdown text:

Replace \[(.*?)\]\(([http|https].*?)\) with <a href="$2">$1</a>