javascript.md

Javascript Notes

https://www.youtube.com/watch?v=xUI5Tsl2JpY&list=PL4cUxeGkcC9haFPT7J25Q9GRB_ZkFrQAc&index=4

Functions

Function declaration

Function declaration is one way to declare function. These functions can be hoisted Hoisted in essence means that the function can be called before it is declared. This is not good practice in any programming soe function expressions in next section is preferred over function declarations.
The function is invoked by calling function with talk()

function talk() {

    console.log('HI!')

}

// call function
talk()

Function Expression

Function experesion is that second way to write functions. This is preferred over functions declarations. These functions need to be established before they are called (not hoisted).

const speak = function() {

    console.log('Good Day!')
};

// invoke function
speak()

Functions with parameters

const work = function(name, company='ufc') {

    console.log('${name} works for ${company}')
};