Labs-01 [ IP ]

//-------------------------------------------
// LAB-01 ИНТЕРНЕТ ПРОГРАМИРАЊЕ
//-------------------------------------------

// Proveruva dali e 3 cifreniot broj palindrom
num = prompt("Vnesi 3 cifren broj: ");

while( num.length != 3 || isNaN(num) )
    num = prompt("Vnesi 3 cifren broj: ");

if( Math.floor(num / 100) == num % 10 )
    alert("Nice Job.");

//-------------------------------------------

// Prikaz na tel. broj i od koj operator e

phone = prompt("Vnesi telefonski broj: ");
while(phone.length != 8)
    phone = prompt("Vnesi telefonski broj: ");


phone = "0" + phone.slice(0,2) + "/" + phone.slice(2, 5) + "-" + phone.slice(5);
op = phone.slice(1,3);
operator = "";

switch(parseInt(op)) {
    case 70:
    case 71:
    case 72:
        operator = " T-mobile";
        break;
    case 75:
    case 76:
        operator = " One";
        break;
    case 77:
    case 78:
        operator = " Vip";
        break;
}

phone = phone + operator;
alert("Your phone number is: " + phone);

// -------------------------------------------

// Find max len word in string

string = prompt("Your string: ");

string = string.split(" ");
max = "";

for( word of string )
    if (word.length > max.length)
        max = word;


alert(max);

// -------------------------------------------

// Find the sign of the product of given numbers

numbers = prompt("Numbers: ");

numbers = numbers.split(",");

sign = 1;
for(num of numbers){
    if(num < 1)
        sign *= -1;
}

if(-1 == sign)
    alert("-");
else
    alert("+");

// -------------------------------------------

// Paren - neparen broj.

for(i = 0; i < 31; i++) {

    if(i % 2 == 0)
        document.write("<p>" + i + " e paren broj.</p>");
    else
        document.write("<p>" + i + " e neparen broj.</p>");
}

// -------------------------------------------