All About Conditions

What is conditions?

Conditional Statements are what happens next in the program when a certain condition is met. =======

Key Components

Condition: A question the computer evaluates, such as “is this true or false?”

Action: Checks if something is true or false

Optional Action: Runs different parts of the code depending on that

Conditional Statements:

There are many types of statements that all help do different things depending on the amount of values, answers and etc..

If Statements: Checks if a condition is true and then executes something.

  • For example: If it’s raining, take an umbrella

Branch Statements: Provides multiple options depending on the condition.

  • For example: If it’s raining, take an umbrella, if not wear sunglasses.

If Else Statements: Checks if a condition is true or false and then provides an execution for both. “If” checks if something is true. “Else” checks if something is false.

  • For example: If you bought a membership the program will print “Welcome in.” If you didn’t buy a membership the program will print “Invalid Membership”

Else If Statements: Checks Multiple conditions first if they are true and if not does the final condition

  • For Example: If you are younger then 10: You get a popsicle If you are you 10 or older but not older then 20: You get a sandwhich If you are older or 20:

Breaking it Down

Example in Javascript:

%%js

if (5>3) {
    console.log("5 is greater than 3.");
} 


<IPython.core.display.Javascript object>

Adding else when using conditions in Javascript:

%%js
let age = 18;
if (age>= 18) {
    console.log("You can vote.");
} else if (age<= 18) {
    console.log("You cannot vote yet.");
}

<IPython.core.display.Javascript object>