Regular Expressions 101

Valid: 000.01.249.255 1.199.200.0 0.0.0.0 Invalid:...

Atleast one charector Atleast one number Min 6 and Max 20 Special charectors optional

This came up as a need for splitting a url param into an array ofr stings, where such a string may be a sublist contained within a bracket pair

for use in function to title case a string; function cap(str) { return str.replace(/\w\S*/g, function(txt) { return txt.charAt(0).toUpperCase() + txt.substr(1).toLowerCase(); }); }

parses user/repo

find file name with file extension

Accepts only integer or Flating values upto 3 decimals. To accept n decimals change (1,n)

check if a string is a hex number

Turkey mobile phone number Regex format 0(5__) -_

extract node values from xml string

Match any alphanumeric string in any language. White spaces are allowed. (Usefull for ECMAScript 5)