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Video of Javascript Tutorial JS Functions & Subroutines Ep11 in JavaScript Essentials course by Programming With Avelx channel, video No. 11 free certified online
Functions are vital in any language to create verbs, actions performed in our program. Without functions we would be hopeless in making our app move and do certain tasks. This is why it's so important to understand what a function is. Also we'll answer important questions like. What is the difference between instantiating a function and invoking a function? What is an argument and what is a parameter? These questions must be answered, many even today get the terminology of arguments and parameters mixed up. Also what can you pass into a function? Can you control the final output of a function, and so on.
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