Conteúdo do Curso
Ninja Game
Ninja Game
For Loops
In this chapter, we will explore the concept of loops, specifically focusing on "for loops." Loops are a fundamental concept in programming that allow us to repeat a block of code multiple times without having to write it out repeatedly. This can be incredibly useful when you want to perform the same action multiple times, such as moving our ninja across the grid to collect sushi.
What is a For Loop?
A "for loop" is a control flow statement that allows code to be executed repeatedly based on a given condition. The loop will continue to execute as long as the condition is true. Once the condition is false, the loop will stop.
The basic syntax of a for loop in JavaScript is as follows:
for (let i = 0; i < 5; i++) { console.log("Iteration:", i) }
- Initialization(
let i = 0): This is where you initialize your loop variable. It is executed once at the beginning of the loop. - Condition(
i < 5): Before each iteration, the condition is evaluated. If it is true, the loop continues. If it is false, the loop stops. - Increment(
i++): This is executed after each iteration of the loop. It is typically used to update the loop variable.
Let's see an example of a for loop in action with our ninja:
ninja.js
index.html
preset.js
In this example, the ninja will move up and pick sushi six times. The loop variable i starts at 0 and increments by 1 each time the loop runs, stopping when i reaches 6.
Swipe to show code editor
Goal: Collect all sushi.
To complete this task, you will need to use a for loop to move the ninja and pick up all the sushi on the grid. Consider how many times you need to repeat the actions and how you can use the loop to achieve this efficiently.
Solução
Starter Map
Mude para o desktop para praticar no mundo realContinue de onde você está usando uma das opções abaixoObrigado pelo seu feedback!
ninja.js
index.html
preset.js
For Loops
In this chapter, we will explore the concept of loops, specifically focusing on "for loops." Loops are a fundamental concept in programming that allow us to repeat a block of code multiple times without having to write it out repeatedly. This can be incredibly useful when you want to perform the same action multiple times, such as moving our ninja across the grid to collect sushi.
What is a For Loop?
A "for loop" is a control flow statement that allows code to be executed repeatedly based on a given condition. The loop will continue to execute as long as the condition is true. Once the condition is false, the loop will stop.
The basic syntax of a for loop in JavaScript is as follows:
for (let i = 0; i < 5; i++) { console.log("Iteration:", i) }
- Initialization(
let i = 0): This is where you initialize your loop variable. It is executed once at the beginning of the loop. - Condition(
i < 5): Before each iteration, the condition is evaluated. If it is true, the loop continues. If it is false, the loop stops. - Increment(
i++): This is executed after each iteration of the loop. It is typically used to update the loop variable.
Let's see an example of a for loop in action with our ninja:
ninja.js
index.html
preset.js
In this example, the ninja will move up and pick sushi six times. The loop variable i starts at 0 and increments by 1 each time the loop runs, stopping when i reaches 6.
Swipe to show code editor
Goal: Collect all sushi.
To complete this task, you will need to use a for loop to move the ninja and pick up all the sushi on the grid. Consider how many times you need to repeat the actions and how you can use the loop to achieve this efficiently.
Solução
Starter Map
Mude para o desktop para praticar no mundo realContinue de onde você está usando uma das opções abaixoObrigado pelo seu feedback!
Mude para o desktop para praticar no mundo realContinue de onde você está usando uma das opções abaixo