How many do you want?

We already learned a bit about quantifiers:
a? - 0 or 1 a
a* - 0 or more a
a+ - 1 or more a

But what if we want exact numbers?
That’s why quantifiers exist

{n} - exactly n times
{n,} - at least n times
{n,m} - between n and m times (including n and m)
{,m} - at most m times

Place them after the character you want to repeat

Hint for the Task:
Remember the | operator to separate the options

Task

Match every a that's exactly repeated 3, every b that's repeated at least 2 times, and any c that's repeated 3 to 5 times

/ /

aa
b
ccccc
aaa
a
bbb
c
ccc

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Regex Cheatsheet

Here you find every Regex character explained

Anchors

^ - Start of a string
$ - End of a string
\b - Word boundary
\B - Not word boundary

Quantifiers

? - Optional
+ - 1 or more times
* - 0 or more times
{n} - Exactly n times
{n,} - at least n times
{,m} - at most m times
{n,m} - Between n and m times

Character Classes

[abc] - Character Set
[^abc] - Not in character set
[a-z] - Range of characters
. - Any character except newline
\d - Digit
\D - Not a digit
\w - Word character
\W - Not a word character
\s - Whitespace
\S - Not whitespace

Groups

(abc) - Capturing group
(?:abc) - Non-capturing group
\1 - Group Reference

Lookarounds

(?=abc) - Positive lookahead
(?!abc) - Negative lookahead
(?<=abc) - Positive lookbehind
(?<!abc) - Negative lookbehind

Flags

g - Global
i - Case-insensitive
m - Multiline

Other Characters

\[Symbol] - Use a Regex Symbol as Text
| - Or