To invoke a function that is defined inside another function, create the inner function within the outer function and call it. When you use the function keyword, the function is elevated to the top of the scope and has access to all of the scope's variables. Copied!
The distinction is that the call() method takes different arguments. The apply() method accepts an array of arguments. If you wish to use an array instead of an argument list, the apply() method comes in useful.
Remember that a JavaScript function allows you to define a block of code, name it, and run it as many times as you like. The function keyword can be used to define a function, and the () operator can be used to run it. One or more parameters can be included in a function.
Functions are called directly in JavaScript, such as x. ().
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