how to use the defer function from the underscore library in javascript

The _.defer() function in Underscore library is used to execute a function after the current call stack has cleared. This is useful when we want to defer an operation until after we have done other operations.

Here is an example of how to use _.defer():

index.tsx
// Setting the value of `message`
var message = "Hello World!";

// Defining a function to log the message after a delay
function showMessage() {
  console.log(message);
}

// Using _.defer() to execute the function after the current call stack has cleared
_.defer(showMessage);

// Changing the value of `message`
message = "Goodbye World!"; 

// Output: "Goodbye World!"
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In the example above, we use _.defer() to execute the showMessage() function after the current call stack has cleared. Therefore, when the function executes, it logs the updated value of message.

Note that _.defer() is an asynchronous function and may be executed at any time after the current call stack has cleared. Use it with caution and make sure that it doesn't affect the behavior of the rest of the program.