Regular Expressions 101

dfsfd

url

Will select everything between the double quotes in an Iframe's src tag. Useful for retrieving/replacing the URL.

few

Detects SYNTACTICALLY correct chess moves (i.e. it doesn't check whether the move itself is actually valid)

var fileExtensionPatter = /\.([0-9a-z]+)(?=[?#])|(\.)(?:[\w]+)$/ var ma1 = 'css/global.css?v=1.2'.match(fileExtensionPatter)[0]; console.log(ma1); // return .css ...

Capturing lucene special characters for escaping

https

The way I like it formatted

Extracts HTML tags, HTML entities, alphanumeric words, and the rest.

Matches phone #s (aaa) bbb-cccc aaa bbb cccc aaabbbcccc and such.