Common Code Blocks

In some cases, we need to use the same code for multiple switch cases. Let’s see an example of how to do it:

Common Code Blocks Example:

Here, we will same code blocks for two different switch cases.

Javascript

let grade = 'A'
let result;

switch (grade) {
    case 'A':
        result = "Grade is excellent"
        break;
    case 'B':
        result = "Grade is good"
        break;
    case 'C':
        result = "Grade is Average "
        break;
    case 'D':
        result = "Grade is Poor"
        break;
    default:
        text = "NO grades achieved";
}
console.log(result)

Output

Grade is excellent

Explanation:

Grade is assigned the value 'A'.
The switch statement evaluates the value of grade.
Since grade matches 'A', the code block following case 'A': is executed, setting result to "Grade is excellent".
The break statement terminates the switch statement.
Result is logged to the console, which outputs "Grade is excellent".

Note: If multiple switch cases match a value, the first is executed.

JavaScript switch Statement

The JavaScript switch statement evaluates an expression and executes a block of code based on matching cases. It provides an alternative to long if-else chains, improving readability and maintainability, especially when handling multiple conditional branches.

Table of Content

Switch Statement Syntax
How Switch Statement Works
Flowchart of Switch Statement
Common Code Blocks

Common Code Blocks