cordova-plugin-qrscanner
                                A fast, energy efficient, highly-configurable QR code scanner for Cordova apps and the browser.
                            
                        How to download and setup cordova-plugin-qrscanner
Open terminal and run command
                                            git clone https://github.com/bitpay/cordova-plugin-qrscanner.git
                                        
                                        git clone is used to create a copy or clone of cordova-plugin-qrscanner 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 cordova-plugin-qrscanner https://github.com/bitpay/cordova-plugin-qrscanner/archive/master.zip
Or simply clone cordova-plugin-qrscanner with SSH
                                            [email protected]:bitpay/cordova-plugin-qrscanner.git                                    
                                    If you have some problems with cordova-plugin-qrscanner
You may open issue on cordova-plugin-qrscanner support forum (system) here: https://github.com/bitpay/cordova-plugin-qrscanner/issuesSimilar to cordova-plugin-qrscanner repositories
Here you may see cordova-plugin-qrscanner alternatives and analogs
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