How to download and setup polyfill
Open terminal and run command
git clone https://github.com/symfony/polyfill.git
git clone is used to create a copy or clone of polyfill 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 polyfill https://github.com/symfony/polyfill/archive/master.zip
Or simply clone polyfill with SSH
[email protected]:symfony/polyfill.git
If you have some problems with polyfill
You may open issue on polyfill support forum (system) here: https://github.com/symfony/polyfill/issuesSimilar to polyfill repositories
Here you may see polyfill alternatives and analogs
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