Understanding the failure rate is crucial for assessing the reliability and performance of a system, process, or product over a specific period. It helps identify areas for improvement and manage risks effectively.
function calculateFailureRate() {
var totalItems = parseFloat(document.getElementById("totalItems").value);
var failedItems = parseFloat(document.getElementById("failedItems").value);
var resultDiv = document.getElementById("result");
resultDiv.innerHTML = ""; // Clear previous results
if (isNaN(totalItems) || isNaN(failedItems)) {
resultDiv.innerHTML = "Please enter valid numbers for all fields.";
return;
}
if (totalItems <= 0) {
resultDiv.innerHTML = "Total Number of Items/Tests must be greater than zero.";
return;
}
if (failedItems totalItems) {
resultDiv.innerHTML = "Number of Failed Items/Tests cannot be greater than the Total Number of Items/Tests.";
return;
}
var failureRate = (failedItems / totalItems) * 100;
resultDiv.innerHTML = `
Failure Rate: ${failureRate.toFixed(2)}%
This means that ${failedItems} out of ${totalItems} items/tests failed, resulting in a failure rate of ${failureRate.toFixed(2)}%.
`;
}
.calculator-container {
font-family: sans-serif;
max-width: 500px;
margin: 20px auto;
padding: 20px;
border: 1px solid #ccc;
border-radius: 8px;
box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}
.calculator-container h2 {
text-align: center;
margin-bottom: 20px;
}
.calculator-inputs {
margin-bottom: 20px;
}
.calculator-inputs label {
display: block;
margin-bottom: 8px;
font-weight: bold;
}
.calculator-inputs input[type="number"] {
width: calc(100% – 20px);
padding: 10px;
margin-bottom: 15px;
border: 1px solid #ccc;
border-radius: 4px;
}
button {
display: block;
width: 100%;
padding: 12px;
background-color: #007bff;
color: white;
border: none;
border-radius: 4px;
font-size: 16px;
cursor: pointer;
transition: background-color 0.3s ease;
}
button:hover {
background-color: #0056b3;
}
.calculator-result {
margin-top: 20px;
padding: 15px;
background-color: #f9f9f9;
border: 1px solid #eee;
border-radius: 4px;
text-align: center;
}
.calculator-result p {
margin-bottom: 10px;
}
.calculator-result .error {
color: red;
font-weight: bold;
}