All About Conditions

Faster ways ;)

Switch Statements Switch Statements are much faster and effecient then writing a bunch of If Else Statements. A switch statement helps your program make choices based on a value. It checks the values with different cases, like options, and then runs the code for the matching case. If the value is unknown it runs the default option.

Benefits of Using Switch Statements - Readability: Easier to read and maintain when handling many possible values. - Efficiency: Faster in some languages, as the implementation often uses a jump table or other optimization - Structured Approach: Clearly separates conditions into cases.

  • For Example: If Color is Blue, it prints the color Blue. If Color is Pink, it prints the color Pink. If it is neither, it prints I dont know.

Example in Code:

%%js
let color = "Yellow";
switch (color) {
    case "Blue":
        console.log("The color is Blue.");
        break; // Stops further checks once this case runs
    case "Pink":
        console.log("The color is Pink.");
        break;
    default:
        console.log("I don't know the color.");
}


<IPython.core.display.Javascript object>

How It Works

  • The switch keyword is followed by the variable (color) to evaluate.
  • The program checks each case to find a match.
  • When a match is found, it executes the code under that case.
  • The break statement prevents the program from continuing to the next cases unnecessarily.
  • If no cases match, the default block runs.

More Real Life Examples in Javascript

%%js
let grade = 85;
if (grade >= 90) {
    console.log("You got a A!");
} else if (grade >=80) {
    console.log("You got a B!");
} else if (grade <=80) {
    console.log("You need to work harder!");
}

<IPython.core.display.Javascript object>