Anonymous Functions in js.md

• Anonymous functions in JavaScript, are the functions that do not have any name.
• Anonymous functions(reference) are stored in variables. They are always invoked (called) using the variable name.
• We can write an anonymous function using the function keyword, followed by parentheses (param1,param2,...) and then the curly braces, the same as we do for normal functions in any language.
• Some important use cases:
  • Anonymous functions are used a lot as callback functions.
  • It's useful when we want any function to be invoked right after it is declared.
  • It is used a lot, for different eventhandlers in js.
  • It's more useful, when a function is to be used only once.
• There is another type of function in JS which can be called as a type of anonymous function, Which is the Arrow Fucntions:
  • => is the representation for arrow functions.
  • They are the more compact and shorter way, to write anonymous functions.