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2 Example(s) of JavaScript lastIndexOf function


Description :

JavaScript lastIndexOf() function returns the last index of specified string from string. See the code snippet:


JavaScript lastIndexOf function Example - 1 
<!DOCTYPE html>
<html>
 <head>
    <title>Welcome to LearnKode - A code learning platform</title>
</head>
  <body>
<p>Click the button to locate the last occurance of a specified value.</p>
<button onclick="lastOccurance()">Find the position of string</button>
<p id="sample"></p>
<script>
function lastOccurance() {
    var str = "I like learnkode and i love learnkode.";
    var n = str.lastIndexOf("learnkode");
    document.getElementById("sample").innerHTML = n;
}
</script>
      </body>
</html>
Try it » Download Example »

Output

Description :

JavaScript lastIndexOf() function has 2 parameters one is searched value and the started element. See the code snippet:


JavaScript lastIndexOf function Example - 2 
<!DOCTYPE html>
<html>
 <head>
    <title>Welcome to LearnKode - A code learning platform</title>
</head>
  <body>
<p>Click the button to locate the last occurance.</p>
<button onclick="lastOccurance()">Find the position of string</button>
<p id="sample"></p>
<script>
function lastOccurance() {
    var str = "i love learnkode.";
    var n = str.lastIndexOf("love",2);
    document.getElementById("sample").innerHTML = n;
}
</script>
      </body>
</html>
Try it » Download Example »

Output