Alerting & Logging

alert("Hi there :)");
console.log('Hi there as well :-S');

Variables
// Constant
const specialNumber = 7;
// Dynamic variable 
let otherNumber = 9;

// Old school
var oldNumber = 10;

console.log(specialNumber + otherNumber);

//Basic Math Operation:
//with + - * / and your variables

//Concatenation of different data types & content always with a plus +

"The final number is:" + result; 

//Backtick quotes `` are used to combine variables and textual data, ex.:
`Result is: ${result}`

//Conditionals

if(x == 7) {
    // do something
} else if(x == 5) {
    // do something else
} else {
    // do nothing
}

// Comparison operators
/*
== is equal to
!= is NOT equal
<  is smaller than
>  is greater than
<= is smaller than or equal to
>= is greater than or equal to

additional/optional "equal type" checking

=== is equal to and of same data type
!== is NOT equal to or of same data type


multiple conditionals

using && (And):
*/
if(x == 7 && x <= pizzaNumber) {
    alert("Hooray, you ate all the pizzas");
}

/*
using || (Or via the pipe symbol)
*/
if(x == 7 || x == 5) {
    alert("you won the lottery")
}

// Arrays

let myCars = ["Audi", "Volvo", "Chrysler"]

console.log(myCars[0])
// will output "Audi"

console.log(myCars[2])
// will output "Chrysler"

// in sqaure brackets sits the index number
// that targets each individual element.
// it starts counting from 0

//Looping through an Array
for(let i = 0; i < myCars.length; i++) {
    console.log(myCars[i]);
}

//i++ means i = i + 1;
//another version i += 1;

//change values in the array as follows:
myCars[2] = "BMW";
//this will replace "Chrysler" in the array