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…nd projects to put in your portfolio I would recommend the FreeCodeCamp front end developer course. The projects for this are: Tribute page, random quote machine, local weather website, wikipedia viewer, twitch.tv stream checker, JavaScript calculator, pomodoro clock, tick-tac-toe game and a Simon game.

The primary reason to use an IIFE is to obtain data privacy. Because JavaScript’s var scopes variables to their containing function, any variables declared within the IIFE cannot be accessed by the outside world.

In both cases above the return value of the expression is the function.
That means that if we want to invoke the function expression right away we just need to tackle a co…