re2js
                                RE2JS is the JavaScript port of RE2, a regular expression engine that provides linear time matching
                            
                        How to download and setup re2js
Open terminal and run command
                                            git clone https://github.com/le0pard/re2js.git
                                        
                                        git clone is used to create a copy or clone of re2js repositories.
                                        You pass git clone a repository URL. it supports a few different network protocols and corresponding URL formats.
Also you may download zip file with re2js https://github.com/le0pard/re2js/archive/master.zip
Or simply clone re2js with SSH
                                            [email protected]:le0pard/re2js.git                                    
                                    If you have some problems with re2js
You may open issue on re2js support forum (system) here: https://github.com/le0pard/re2js/issuesSimilar to re2js repositories
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