Kursusindhold

JavaScript Ninja

1. Basic Controls

First Mission Practice. Collect Side Sushi Practice. Collect Diagonal Sushi Practice. Bypass an Obstacle

2. Advanced Controls

Movement Challenge Practice. Pick and Move to the Corner Practice. Move Sushi to the Center of the Box Practice. Pick and Hide Sushi

3. Functions

Using Functions Writing Functions Functions Practice. Collect Pits Functions Practice. Make Diagonals Decomposition Decomposition Practice. Collect Angles Decomposition Practice. Move Columns Decomposition Practice. Collect Sections

4. Loops

For Loops For Loops Practice While Loops Nested Loops

5. If-Else Statements

If-Else Statements If-Else Statements Practice. Roll the Sushi If-Else Statements Practice. Clear the Storage If-Else Statements Practice. Follow the Sushi Snake

6. Challenges

Challenge: Build letter K Challenge: Build letter E Challenge: Traverse Spiral Challenge: Align two columns

7. Array

Intro to Arrays

If-Else Statements

In this chapter, we will explore the concept of if-else statements in JavaScript. If-else statements allow us to make decisions in our code based on certain conditions. This is a fundamental concept in programming that enables us to control the flow of our programs.

Understanding If-else Statements

An if-else statement evaluates a condition and executes a block of code if the condition is true. If the condition is false, it can execute an alternative block of code. This is how we can make our programs respond differently to different situations.

Here's the basic structure of an if-else statement:


              123456
            
const condition = true
if (condition) {
  console.log("Condition is true")
} else {
  console.log("Condition is false")
}

The "!" Symbol

The "!" symbol is used to negate a boolean expression. If a condition is true, using "!" will make it false, and vice versa. This can be very useful when you want to execute code only when a condition is not met.

For example:


              1234
            
const condition = false
if (!condition) {
  console.log("Condition is false")
}

Example

Let's look at an example that uses if-else statements to help our ninja collect all the sushi on the map. The ninja will move around the grid, picking up sushi while avoiding walls.

ninja.js

In this example, the ninja will continue to move and pick up sushi until it encounters walls both above and to the right. The if-else statement checks if there is a wall to the right. If there is, the ninja moves up and picks up sushi. Otherwise, it moves to the right and picks up sushi.

Opgave

Swipe to start coding

Løsning

Skift til skrivebord for at øve i den virkelige verdenFortsæt der, hvor du er, med en af nedenstående muligheder

Var alt klart?

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Sektion 5. Kapitel 1

ninja.js

If-Else Statements

Understanding If-else Statements

Here's the basic structure of an if-else statement:


              123456
            
const condition = true
if (condition) {
  console.log("Condition is true")
} else {
  console.log("Condition is false")
}

The "!" Symbol

For example:


              1234
            
const condition = false
if (!condition) {
  console.log("Condition is false")
}

Example

Let's look at an example that uses if-else statements to help our ninja collect all the sushi on the map. The ninja will move around the grid, picking up sushi while avoiding walls.

ninja.js

Opgave

Swipe to start coding

Løsning

Skift til skrivebord for at øve i den virkelige verdenFortsæt der, hvor du er, med en af nedenstående muligheder

Var alt klart?

Tak for dine kommentarer!

Sektion 5. Kapitel 1

Skift til skrivebord for at øve i den virkelige verdenFortsæt der, hvor du er, med en af nedenstående muligheder