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Node.js is a lean, fast, cross-platform JavaScript runtime environment that is useful for both servers and desktop applications.

‘Higher-order functions’ is a fancy term for functions that take other functions as arguments or that return functions. Very powerful!

I was digging around on twitter and I found a great comment from @BenAtExocortex: “Javascript has no block scope (!) but one can use self-executing functions instead (as Javascript has function scope.

While JavaScript has many applications, working with string values is one of the most popular. Strings are objects within the JavaScript language. They are not stored as character arrays, so built ...