LengthConverter / index.html
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Update index.html
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<!DOCTYPE html>
<html>
<head>
<title>Length Converter</title>
</head>
<body>
<h1>Length Converter</h1>
<label for="input">Meaning:</label>
<input type="number" id="input" placeholder="Enter value">
<p></p>
<label for="from">From:</label>
<select id="from">
<option value="meter">Meters</option>
<option value="kilometer">Kilometers</option>
<option value="millimeter">Millimeters</option></option>
<option value="decimeter">Decimeters</option>
<option value="centimeter">Centimeters</option>
</select>
<label for="to">To:</label>
<select id="to">
<option value="meter">Meters</option>
<option value="kilometer">Kilometers</option>
<option value="millimeter">Millimeters</option>
<option value="decimeter">Decimeters</option>
<option value="centimeter">Centimeters</option>
</select>
<p></p>
<button onclick="convert()">Convert</button>
<p id="result"></p>
<script>
function convert() {
var input = document.getElementById("input").value;
var from = document.getElementById("from").value;
var to = document.getElementById("to").value;
var result;
if (from === "meter") {
if (to === "meter") {
result = input;
} else if (to === "kilometer") {
result = input / 1000;
} else if (to === "millimeter") {
result = input * 1000;
} else if (to === "decimeter") {
result = input * 10;
} else if (to === "centimeter") {
result = input * 100;
}
} else if (from === "kilometer") {
if (to === "meter") {
result = input * 1000;
} else if (to === "kilometer") {
result = input;
} else if (to === "millimeter") {
result = input * 1000000;
} else if (to === "decimeter") {
result = input * 10000;
} else if (to === "centimeter") {
result = input * 100000;
}
} else if (from === "millimeter") {
if (to === "meter") {
result = input / 1000;
} else if (to === "kilometer") {
result = input / 1000000;
} else if (to === "millimeter") {
result = input;
} else if (to === "decimeter") {
result = input / 100;
} else if (to === "centimeter") {
result = input / 10;
}
} else if (from === "decimeter") {
if (to === "meter") {
result = input / 10;
} else if (to === "kilometer") {
result = input / 10000;
} else if (to === "millimeter") {
result = input * 100;
} else if (to === "decimeter") {
result = input;
} else if (to === "centimeter") {
result = input * 10;
}
} else if (from === "centimeter") {
if (to === "meter") {
result = input / 100;
} else if (to === "kilometer") {
result = input / 100000;
} else if (to === "millimeter") {
result = input * 10;
} else if (to === "decimeter") {
result = input / 10;
} else if (to === "centimeter") {
result = input;
}
}
document.getElementById("result").innerHTML = result;
}
</script>
</body>
</html>