The need to quickly test code without having to set up a project before you can see the result may be under appreciated until the need arises. When you are stuck on a particular part of your code and you need to test a particular function, utility files come in really handy.
I check Stack Overflow a lot, test out functions and also try to help other people out. My utility file is used in this entire process. Check out the video and see how I go about this.
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