WEBVTT

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We'll explore a key concept in programming, variables, and by the end, you'll be able to,

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understanding what a variable is, how to create and use variables, why variables make your code

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efficient, and easy to update. What is a variable? A variable is a container for storing data in a program.

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For example, if you create a variable called age and set it to 25, the program will remember that value.

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If you later change age to 30, the program will automatically update the value.

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This allows the program to keep track of information that might change while it's running.

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Creating variables in Python. Let's create variables, type, name, lily, age, 12, here.

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The variable name stores the value, lily, and the variable age stores the value 12, printing variable values.

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To see the values of these variables, we use the print function, type, print, name, print, age.

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When you run the code, you will see the values lily and 12 printed on the console, changing variable values.

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Now let's update the values of the variables. Change the code to name, Emma, age, 15.

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Run the code again, and the new values, Emma and 15 will be printed on the console.

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This demonstrates how variables can easily be updated to hold different data.

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Why are variables important? Variables are important for two key reasons. Reusability.

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You can use the same variable in different places within your code without repeating the same information. Easy updates.

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If you change a variable's value, the entire program automatically updates to reflect the new value.

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Experiment by changing the values of your variables and running the code again.

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Programming is all about exploring different possibilities, so keep trying out new values and variables and see how they change the output.