Frontend Question part-2

** Ternary operator (?:)**
The ternary operator is used to check conditions and works as follows.

let result = shart ? true_holat : false_holat;

• Condition: An expression that returns a True or False value.

• If the condition is true, true_state is returned; otherwise, false_status is returned.

• Conditional operator (decides True or False)

• Consists of three parts (condition, true, false)

Example:

let age = 18;
let natija = age >= 18 ? "Kirish mumkin" : "Kirish mumkin emas";
console.log(natija); //kirish mumkin chunku age 18 ga teng 18 = 18 ga true holat.

**

1. Null concatenation operator (??)**

This operator is used to check for null or undefined values. If the value on the left is null or undefined, the value on the right is returned.

example:

let username = null;
let defaultName = "Mehmon";
let natija= username ?? defaultName;
console.log(natija); // "Mehmon" username null qiymatga teng va u chapda joylashgan natija Mehmon.

• If left_side is null or undefined, right_side is returned.
• Otherwise, left_side is returned.

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