Parameters for the function A function can contain one or more parameters that are passed in by the calling code and can be used within the function.
The Object of the Arguments By default, all JavaScript functions can use arguments objects.
Value of Return.
Expression of a Function.
JavaScript functions are similar to those in other high-level scripting languages like TypeScript, and there are two sorts of functions: predefined and user-defined.
Function declaration
Function expression
Shorthand method definition
Arrow function
Generator function
Also, there's a new function.
Type the keyword function followed by the function's name.
Open and close parenthesis after the function name.
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