[Must-Read for Beginners] Don't use `+` if you want to merge arrays! The correct way to use spread syntax and concat

In languages like Python or Ruby, using the `+` operator on lists or arrays often results in them being merged (concatenated) into a new array.However, if you add arrays together in JavaScript with ...
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Manipulating strings with JavaScript

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-in ...