How to get value of a string after last slash in JavaScript?

Last Updated : 06 Sep, 2019

The task is to get the string after a specific character(‘/’). Here are few of the mostly used techniques discussed. We are going to use JavaScript.
Approach 1:

Split the string by .split() method and put it in a variable(array).
Use the .length property to get the length of the array.
From the array return the element at index = length-1.

Example 1: This example using the approach discussed above.

<!DOCTYPE HTML>
<html>
  
<head>
    <title>
        Get value of a string
      after last slash in JavaScript?
    </title>
</head>
  
<body style="text-align:center;"
      id="body">
    <h1 style="color:green;">  
            GeeksForGeeks  
        </h1>
    <p id="GFG_UP" 
       style="font-size: 15px;
              font-weight: bold;">
    </p>
    <button onclick="GFG_FUN()">
        click here
    </button>
    <p id="GFG_DOWN" 
       style="font-size: 24px; 
              font-weight: bold;
              color: green;">
    </p>
    <script>
        var el_up = document.getElementById("GFG_UP");
        var el_down = document.getElementById("GFG_DOWN");
        var str = "folder_1/folder_2/file.html";
        el_up.innerHTML = "Click on the button to get"+
          " the string after last slash.<br><br>String - '"
        + str + "'";
  
        function GFG_FUN() {
            str = str.split("/");
            el_down.innerHTML = str[str.length - 1];
        }
    </script>
</body>
  
</html>

Output:

Before clicking on the button:
After clicking on the button:

Approach 2:

First, find the last index of (‘/’) using .lastIndexOf(str) method.
Use the .substring() method to get the access the string after last slash.

Example 2: This example using the approach discussed above.

<!DOCTYPE HTML>
<html>
  
<head>
    <title>
        Get value of a string 
      after last slash in JavaScript?
    </title>
</head>
  
<body style="text-align:center;" 
      id="body">
    <h1 style="color:green;">  
            GeeksForGeeks  
        </h1>
    <p id="GFG_UP"
       style="font-size: 15px;
              font-weight: bold;">
    </p>
    <button onclick="GFG_FUN()">
        click here
    </button>
    <p id="GFG_DOWN" 
       style="font-size: 24px; 
              font-weight: bold;
              color: green;">
    </p>
    <script>
        var el_up = document.getElementById("GFG_UP");
        var el_down = document.getElementById("GFG_DOWN");
        var str = "folder_1/folder_2/file.html";
        el_up.innerHTML = "Click on the button to get"+
          " the string after last slash.<br><br>String - '"
        + str + "'";
  
        function GFG_FUN() {
            el_down.innerHTML = 
              str.substring(str.lastIndexOf('/') + 1);
        }
    </script>
</body>
  
</html>

Output:

Before clicking on the button:
After clicking on the button:

My Personal Notes

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