1console.log(2 + 3 * 4);       // 14 — avval 3*4=12, keyin 2+12
2console.log((2 + 3) * 4);     // 20 — qavs tufayli 2+3=5, keyin 5*4
3
4// Murakkab misol
5const narx = 100;
6const soliq = 12;
7const umumiy = narx + (narx * soliq / 100);  // 100 + 12 = 112
8console.log(umumiy);

1console.log(5 + 3);          // 8        (son + son)
2console.log("Ali" + " " + "Valiyev");  // "Ali Valiyev" (matn + matn)
3
4// Chalkash qism:
5console.log("5" + 3);        // "53"     (matn, chunki "5" matn!)
6console.log("Yosh: " + 17);  // "Yosh: 17"
7console.log(1 + 2 + "3");    // "33"     (avval 1+2=3, keyin "3"+"3"="33")
8console.log("1" + 2 + 3);    // "123"    (avval "1"+"2"="12", keyin +"3")

1const ism = "Ali";
2const yosh = 17;
3
4// Eski usul (qiyin o'qiladi)
5console.log("Mening ismim " + ism + ", " + yosh + " yoshdaman.");
6
7// Zamonaviy usul — template literals
8console.log(`Mening ismim ${ism}, ${yosh} yoshdaman.`);
9
10// Ichida amal ham bajarish mumkin
11console.log(`Keyingi yili ${yosh + 1} yoshga to'laman.`);

1Math.PI              // 3.141592653589793
2Math.max(3, 7, 2, 9) // 9
3Math.min(3, 7, 2, 9) // 2
4
5Math.abs(-5)         // 5       (modul)
6Math.sqrt(16)        // 4       (kvadrat ildiz)
7Math.pow(2, 10)      // 1024    (2^10)
8
9// Yaxlitlash
10Math.round(4.5)      // 5       (yaqin butun)
11Math.ceil(4.1)       // 5       (yuqoriga)
12Math.floor(4.9)      // 4       (pastga)
13
14// Tasodifiy son (0 dan 1 gacha)
15Math.random()        // 0.7342...
16
17// 1-6 oralig'ida tasodifiy son (zar tashlash)
18Math.floor(Math.random() * 6) + 1

1// Matndan songa
2const matn = "42";
3console.log(Number(matn));     // 42
4console.log(parseInt("18px")); // 18
5console.log(parseFloat("3.14 kg")); // 3.14
6
7// Sondan matnga
8const son = 42;
9console.log(String(son));      // "42"
10console.log(son.toString());   // "42"
11
12// Qisqa hiyla: +
13console.log(+"5" + +"3");      // 8   (ikkalasini ham songa aylantirdik)
14
15// Noto'g'ri son = NaN
16console.log(Number("salom"));  // NaN (Not a Number)