If-Else Statement

Selects which statements to run based on a condition.

Details

An if-else statement select which statement(s) to run based on a boolean condition.

The condition is always a boolean value. It’s either true or false. According to the value, it runs one block, or the other, but never both.

_{🤖 Pseudocode}

if condition then 
    option A
else 
    option B

---

The else part is optional.

We might want to run a command when a condition is satisfied, but have no alternative when it’s not.

_{🤖 Example: Conditional Flow}

preheat oven
mix ingredients
if chocolate cake then
    add cocoa powder
pour batter into pan
bake
decorate

---

It’s also possible to handle more than one alternative.

_{🤖 Pseudocode}

if condition 1 then 
    option A
else if condition 2 then
    option B
else if condition 3 then
    option C
else
    option D

This way, we can handle more than two paths of execution.

In these cases, the else appears at the end as a fallback alternative.

Related Concepts

• Is: Conditional Statement

Related Actions

• Is created: Write an If-Else Statement

References

• If-then(-else)