So you designed an app on iPhone, but it’s buggy on Android and you don’t know what to do. Docker is the tool to alleviate this major headache of software development.
Docker is a container system that works as its own small virtual machine, and doesn’t take too much computer processing power. The program is an equalizer. The containers run the same way on any operating system because the code operates within the container.
Docker is to developing applications what a number two pencil is to the Scantron in a standardized test. In those familiar grade school test, if one person was using a lead pencil, the other was using a pen and the other has quill plucked from an eagle dipped in ink they microbrew in their basement, there would be errors in registering the answers. But with the right tool, the machine can process everything correctly.
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