app.js

// variable with type
// const
// operation
// comparisation
// condition
//loop
//function
// ds
//dsfdfsdfdsf

/*
1 byte = 8 bit 


*/

var x = 15

// azAZ$_ 
//azAZ_$09
//var _st_$3 = "Ecoin"
//  number  string  boolean  object array

var num1 = 25  // integer
var num2 = 36.9  //float
var num3 = 20195.98745 // double


var str1 = "Welcom to ecoin"  // String
var str2 = 'A'  // String  char

var isAdmin = true //boolean bool
var isUser = false  // boolean

//console.log(str1)

//console.log(num2)

var tab = [45, 36, "Ecoin", true, 2016]

//console.log(tab)

var tab2 = new Array(45, 36, 9, 8, 7)
//console.log(tab2)

var tab3 = new Array()
tab3[0] = "Ecoin"
tab3[1] = 28
tab3[2] = 2.66
tab3[3] = 203
tab3[4] = false

//console.log(tab3)

//console.log(typeof tab2)

var tab4 = [14, 36, "Ecoin", 2023]
tab4['test'] = 88

//console.log(tab4)

//Object

var student = { nom: "Ahmed", prenom: "kadri", age: 25 }

//console.log(student.age)
//console.log(typeof student.age)

const PI = 3.14

//console.log(PI)

const project = "Ecoin"

//   +  -  *   /  %  
var x = 25
/*
console.log(x + y)
console.log(x - y)
console.log(x * y)
console.log(y / x)
console.log(y % x)

*/

//x = x + 9 // x+=9 
/*x += 9
console.log(x)
x = x - 9 // x-=6
x = x * 9 // x*=6
x = x / 9 // x/=6
*/

//x = x + 1 // x++  /incrementation
//x++ // x--

//console.log(++x) //25
//console.log(x++) //25


var a = 19
var b = 23
// == !=  >   >=  <  <=  ! ===
var t = a > b
//console.log(!t)

var c1 = 25
var c2 = "25"

//console.log(c1 === c2)

//console.log(true & true)
/*
true && true ===> true
true && false ===> false
false && true ===> false
false && false ===> false


true || true ===> true
true || false ===> true
false || true ===> true
false || false ===> false
*/

// condition  nested if
/*var x = 45
if (x >35) 
    console.log("Yes");
else if (x > 25)
    console.log("X > 25")    
 else
    console.log("OK")

console.log("Ecoin")
*/
/*
var a1 = prompt("please enter number1")
a1 = parseInt(a1)
var a2 = prompt("please enter number2")
a2 = parseInt(a2)
if (a1 > a2) {
    console.log("A1 > A2")
} else if(a1 < a2) {
    console.log("A2 > A1")
} else {
    console.log("A2 = A1")
}
*/
//console.log(typeof a1)
 //a1 a2 a3  >=
 /*
a, b, c
a >= b ==> t ==> a >= c 
       ==> f ==> b >= c

       */

/*
var a = prompt("please enter number1")
a = parseInt(a)
var b = prompt("please enter number2")
b = parseInt(b)
var c = prompt("please enter number2")
c = parseInt(c)
if (a >= b ) {
    if (a >= c) {
        if(a%2==0) console.log(a+" is pair")
        else console.log(a+" is impair")
    } else {
        if(c%2==0) console.log(c+" is pair")
        else console.log(c+" is impair")
    }
} else {
    if (b >= c) {
    if(b%2==0) console.log(b+" is pair")
        else console.log(b+" is impair") 
    }else {
        if(c%2==0) console.log(c+" is pair")
        else console.log(c+" is impair")
    }
}
*/

//loob

var i = 1
while (i<=5) {
    console.log("Ecoin"+i)
    i++
}

var j = 1
do {
    console.log("JS "+j)
    j++
}while(j<=10)


var t = []

var s = 0
while (s <= 4) {
    t[s] = "Ecoin " + s
    s++
}

console.log(t)

var s1 = 0
while (s1 <= 4) {
    console.log(t[s1])
    s1++
}