Notice: This page requires JavaScript to function properly.
Please enable JavaScript in your browser settings or update your browser.
Вивчайте if statement | Conditional Statements
Introduction to TypeScript

bookif statement

It's our turn to control the code; now we will set conditions for its execution!

Let's consider the most basic form of conditional statements - the if statement.

Let's move on to the syntax:

if (condition) {
	// code to be executed if the condition is true
}

For example:

12345
let amIHappy = true; if (amIHappy) { console.log('I am so happy!'); } console.log("It's Monday");
copy

That's almost all there is to it, but there's one more thing worth mentioning. Inside the condition block, there should be a boolean value. However, we can also place an expression that will result in a boolean value inside this block, for example:

1234
let age: number = 22; if (age >= 21) { console.log('You can buy alcohol'); }
copy

You can change the value of the variable age to see how the code works depending on that value.

I'll tell you how to set a condition if the first one doesn't work in the next chapter!

question mark

What will be the result of executing this code?

Select the correct answer

Все було зрозуміло?

Як ми можемо покращити це?

Дякуємо за ваш відгук!

Секція 2. Розділ 2

Запитати АІ

expand

Запитати АІ

ChatGPT

Запитайте про що завгодно або спробуйте одне із запропонованих запитань, щоб почати наш чат

Awesome!

Completion rate improved to 2.94

bookif statement

Свайпніть щоб показати меню

It's our turn to control the code; now we will set conditions for its execution!

Let's consider the most basic form of conditional statements - the if statement.

Let's move on to the syntax:

if (condition) {
	// code to be executed if the condition is true
}

For example:

12345
let amIHappy = true; if (amIHappy) { console.log('I am so happy!'); } console.log("It's Monday");
copy

That's almost all there is to it, but there's one more thing worth mentioning. Inside the condition block, there should be a boolean value. However, we can also place an expression that will result in a boolean value inside this block, for example:

1234
let age: number = 22; if (age >= 21) { console.log('You can buy alcohol'); }
copy

You can change the value of the variable age to see how the code works depending on that value.

I'll tell you how to set a condition if the first one doesn't work in the next chapter!

question mark

What will be the result of executing this code?

Select the correct answer

Все було зрозуміло?

Як ми можемо покращити це?

Дякуємо за ваш відгук!

Секція 2. Розділ 2
some-alt