JavaScript functions declare to 6 ways

What Is the function of JavaScript?

A function is a parametric block of code defined one time and called any number of times later. In JavaScript a function is composed and influenced by many components: A JavaScript function is a block of code designed to perform a particular task.

A JavaScript function is executed when "something" invokes it (calls it).

• JavaScript code that forms the function body
• The list of function parameters
• The variables accessible from the outer scope
• The returned value
• The context this when the function is invoked
• Named or anonymous function
• The variable that holds the function object after declaration
• arguments object (or its missing in an arrow function)

These components affect the function behavior depending on the declaration type. In JavaScript a function can be declared using several ways:

JavaScript Functions declare to  6 Ways -

1. Function declaration
2. Function expression
3. Shorthand method definition
4. Arrow function
5. Generator function
6. Function constructor

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About Mariano

I'm Ethan Mariano a software engineer by profession and reader/writter by passion.I have good understanding and knowledge of AngularJS, Database, javascript, web development, digital marketing and exploring other technologies related to Software development.