Lära Why Programs Need Decisions and Repetition | Understanding Program Flow and Decisions

Imagine you are deciding what to wear in the morning. If it is raining, you choose a raincoat. If it is sunny, pick a T-shirt. This decision is based on the weather. After making your choice, you might brush your teeth, eat breakfast, and pack your bag, actions you repeat every day. Programs work similarly. They make decisions and repeat actions, allowing them to solve problems and handle many situations automatically.


              12345678910
            
// Making a decision with if
let weather = "rainy";
if (weather === "rainy") {
  console.log("Take an umbrella!");
}

// Repeating an action with a for loop
for (let day = 1; day <= 3; day++) {
  console.log("Brush your teeth. Day: " + day);
}

The code above shows how a computer can make a choice—telling you to take an umbrella if it is rainy—and how it can repeat an action, such as reminding you to brush your teeth for three days in a row. This mirrors the way you make decisions and follow routines in your daily life.

Var allt tydligt?

Tack för dina kommentarer!

Avsnitt 1. Kapitel 1

Fråga AI

Fråga vad du vill eller prova någon av de föreslagna frågorna för att starta vårt samtal

Awesome!

Completion rate improved to 7.69

Svep för att visa menyn


              12345678910
            
// Making a decision with if
let weather = "rainy";
if (weather === "rainy") {
  console.log("Take an umbrella!");
}

// Repeating an action with a for loop
for (let day = 1; day <= 3; day++) {
  console.log("Brush your teeth. Day: " + day);
}

Var allt tydligt?

Tack för dina kommentarer!

Avsnitt 1. Kapitel 1