nodejs release variable

Node.js Release Variable

To release a variable in Node.js, you can use the delete keyword followed by the variable name. This will remove the variable from memory and make it eligible for garbage collection.

Here are the steps to release a variable in Node.js:

1. Use the delete keyword followed by the variable name to remove the variable from memory. javascript delete variableName;

Example: ```javascript let x = 10; console.log(x); // Output: 10

delete x;

console.log(x); // Output: ReferenceError: x is not defined ```

Note that after releasing the variable, attempting to access it will result in a ReferenceError since the variable no longer exists.

1. Verify that the variable has been released by attempting to access it. javascript console.log(variableName); // Output: ReferenceError: variableName is not defined

If the variable has been successfully released, attempting to access it will result in a ReferenceError.

That's it! Following these steps will release a variable in Node.js.