I tried googling that , but i can not discuss to google, sometimes in the courses i saw the instructor assign an arrow function to a variable like that.
const s = ( ) => { }
what are the cases when I need that syntax and not using
function s( ) { }
My BASIC Question --> when to use
const s = ( ) => { }
versus
function s( ) => { }
.. why the assignment ... thats my main Question (when and why i assign ?) why not use the arrow function without assigning it to a variable ??
Your examples are showing 2 ways to declare a function.
This is an example of a function declaration.
function s() {
// some code
}
This is another way to define a function, called function expression.
const s = function() {
// some code
}
This is an arrow function. With the exception of the way this is treated between the arrow function and the other two, they are pretty much 3 ways to write the same function.
const s = () => {
// some code
}
As stated in the response below, function declaration and function expression are ES5 features and the arrow function is an ES6 feature.