The indexedDB cmp() method is used to compare two values as keys to determine equality and ordering for further IndexedDB operations.
Syntax:
var result = indexedDB.cmp(key1, key2);
Parameters:
- key1: The first key to compare.
- key2: The second key to compare.
Return value: It returns an integer that indicates the result of the comparison.
| Returned value | Description |
|---|---|
| -1 | Key 1 < Key 2 |
| 0 | Key 1 = Key 2 |
| 1 | Key 1 > Key 2 |
Example: In this example, we will compare two keys using this method.
<!DOCTYPE HTML> <html>
<head>
<title>indexedDB cmp() method</title>
</head>
<body style="text-align:center;">
<h1 style="color:green;">
GeeksforGeeks
</h1>
<p>
HTML | indexedDB cmp() method
</p>
Enter First Number :
<input type="number" id="fir"><br><br>
Enter Second Number :
<input type="number" id="sec"><br><br>
<button onclick = "Geeks()">
Click to Compare
</button>
<p id="a">
</p>
<script>
var a = document.getElementById("a");
function Geeks() {
var fir =
document.getElementById("fir").value;
var sec =
document.getElementById("sec").value;
var result = window.indexedDB.cmp(fir, sec);
if(result==0){
a.innerHTML = "Both are equal";
}
else if(result==1){
a.innerHTML = "a is greater";
}
else{
a.innerHTML = "b is greater";
}
}
</script>
</body>
</html>
|
Output:
Before Button Click:
After Button Click:
Supported Browsers:
- Google Chrome
- Edge
- Firefox
- Safari
- Opera
- Internet Explorer (Partial Support)