Why conditional logic is needed in Javascript - Quick Recap

Recall & Review

beginner

What is conditional logic in programming?

Conditional logic lets a program make decisions by choosing different actions based on conditions being true or false.

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Why do programs need conditional logic?

Programs need conditional logic to react differently to different situations, like a traffic light changing colors based on time or cars waiting.

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Example: What does this code do?<br>

if (temperature > 30) {<br>  console.log('It is hot');<br>} else {<br>  console.log('It is not hot');<br>}

It checks if the temperature is above 30. If yes, it prints 'It is hot'. Otherwise, it prints 'It is not hot'.

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How is conditional logic like choosing clothes for the weather?

Just like you pick clothes based on weather (raincoat if rainy, sunglasses if sunny), programs use conditional logic to pick actions based on conditions.

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What happens if a program has no conditional logic?

Without conditional logic, a program would do the same thing every time, no matter what. It can't adapt or respond to different situations.

What does conditional logic allow a program to do?

A Make decisions based on conditions

B Run faster

C Store data permanently

D Create graphics

Conditional logic lets programs choose actions depending on whether conditions are true or false.

Which real-life example is similar to conditional logic?

A Sleeping without waking up

B Eating the same meal every day

C Choosing clothes based on weather

D Driving without steering

Choosing clothes based on weather is like conditional logic because you decide based on conditions.

What happens if a condition in an if statement is false?

A The else block runs if it exists

B The program crashes

C The program stops immediately

D The if block runs anyway

If the condition is false, the else block runs if it is provided.

Why is conditional logic important in programs?

A To make programs shorter

B To allow different actions for different situations

C To store numbers

D To print text only

Conditional logic lets programs respond differently depending on the situation.

Which keyword is used to check a condition in JavaScript?

A function

B for

C while

D if

The 'if' keyword is used to check conditions in JavaScript.

Explain in your own words why conditional logic is needed in programming.

Think about how you decide what to do based on what is happening around you.

Give a simple real-life example that shows how conditional logic works.

Try to think about choosing clothes or crossing the street.