How to remove Objects from Associative Array in JavaScript ?
Create an associative array containing key-value pair and the task is to remove the objects from an associative array using JavaScript. We can remove objects from JavaScript associative array using the delete keyword.
Approach: Declare an associative array containing key-value pair objects. Then use the delete keyword to delete the array objects from an associative array.
Example 1: This example uses the delete keyword to remove the objects from the associative array.
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<body style="text-align:center;"> <h1 style="color:green;"> GeeksforGeeks </h1> <h3> How to remove Objects from Associative Array in JavaScript ? </h3> <script> // JavaScript code to remove // objects from associative array function deleteObjects(){ // Declaring an associative // array of objects var arr = new Object(); // Adding objects in array arr['key'] = 'Value'; arr['geeks'] = 'GeeksforGeeks'; arr['name'] = 'Rajnish'; // Checking object exist or not document.write(arr['name'] + '</br>'); // Removing object from // associative array delete arr['name']; // It gives result as undefined // as object is deleted document.write(arr['name'] + '</br>'); } // Calling function deleteObjects(); </script> </body> |
Output:
Example 2: This example uses the delete keyword to remove the objects from the associative array.
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<body style="text-align:center;"> <h1 style="color:green;"> GeeksforGeeks </h1> <h3> How to remove Objects from Associative Array in JavaScript ? </h3> <script> // JavaScript code to remove // objects from associative array function deleteObjects(){ // Declaring an associative // array of objects var arr = new Object(); // Adding objects in array arr['key'] = 'Value'; arr['geeks'] = 'GeeksforGeeks'; arr['name'] = 'Rajnish'; // Checking object exist or not document.write(arr['geeks'] + '</br>'); // Removing object from // associative array delete arr.geeks; // It gives result as undefined // as object is deleted document.write(arr['geeks'] + '</br>'); } // Calling function deleteObjects(); </script> </body> |
Output:
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