^ / $ line beginning / ending \b word border position \B in-word position (?=x) lookahead if x comes next . any character \d / \D digit / any other \s / \S whitespace / any other \w / \W alpha-numeric / any other [ab] any character a or b [^ab] any character but a and b About the Project RegViz is a tool for debugging JavaScript regular expressions in a visual way. The goal of the project is to cr
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