Variable

A named place in a computer program where you can store and change a value.

Details

Variables are like labeled boxes: you can store something inside, check what’s there, and update it.

They make programs flexible by allowing handling values that change during execution.

Consider keeping track of a player’s score:

_{🤖 Pseudocode}

score = 0                   # store the initial value
score = 10                  # change the value
"Current Score:" score      # use the current value

A variable creates a space in memory called score to hold the player’s score.

This allows the game to update the score as it changes and display it to the player.

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To use a variable, we need to declare it first.

Declaring a variable, consists of telling the program to reserve a piece of memory to store some data.

Check Related Actions for details on how to perform different actions with variables.

Related Concepts

• Has: Data Type
• Used in: Naming Variables

Related Actions

• Used in: Perform Arithmetic Operation
• Used in: Check Odd or Even
• Used in: Assign a Value to a Variable
• Used in: Declare a Variable
• Used in: Increment or Decrement a Variable
• Used in: Print a Variable

References

• Variable (computer science)