Lack of Input Validation and Error Handling in Calculator

[MakaremHind]

Lack of Input Validation and Error Handling in Calculator

Description:

The calculator currently lacks proper validation and error handling for various input cases. This can lead to unexpected behavior or incorrect results. Specifically, the following issues are present:

• Division by zero is not handled, leading to undefined behavior.
• Consecutive operators (e.g., 5 ++ 3) can be entered, causing calculation errors.
• Multiple decimal points can be entered within a single number, leading to parsing issues.

Proposed Solution:

Implement validation checks for division by zero, multiple decimal points, and consecutive operators.
Add error handling to catch and display errors for invalid operations.

###Example Code:

function divide(a, b) {
    if (b === 0) {
        alert("Error: Division by zero is undefined.");
        return null;
    }
    return a / b;
}

function addOperator(operator) {
    if (!isNaN(display.value[display.value.length - 1])) { 
        display.value += operator;
    }
}

[github-actions]

👋 @MakaremHind

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[soniSanidhya]

hey assign this to me