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).
Why Functions?
You can reuse code: Define the code once, and use it many times.
You can use the same code many times with different arguments, to produce different results.
Sample1: Function - ToCelsius
JavaScript/008-Functions/001-Function-ToCelsius
Sample2: Function
JavaScript/008-Functions/002-Function
Sample3: Function
JavaScript/008-Functions/003-Function
Sample4: Function
JavaScript/008-Functions/004-Function