How do I pass parameters to setTimeout in JavaScript and avoid immediate execution?

Delayed Script Execution in JavaScript: Exploring setTimeout and Anonymous Functions

Developers often encounter the need to delay the execution of scripts in JavaScript. To achieve this, setTimeout serves as a valuable tool. However, it's worth noting that passing parameters with setTimeout requires handling through anonymous functions.

In the example provided, a setTimeout call is made to display an alert after 2000 milliseconds. However, the code incorrectly passes the alert function with parameters enclosed in brackets ("alert("Hello " a)"), leading to the alert being displayed immediately.

To address this, the code can be modified in two ways:

1. Using a Function Name: Define a function with the code that will be executed later and pass the function name as an argument to setTimeout. This allows for parameter passing within the function definition.
2. Using an Anonymous Function: Create an anonymous function encapsulating the code that will be executed later and pass this function to setTimeout. This approach is particularly useful when parameters need to be passed.

In either case, remember to use a callback function when passing parameters to maintain the original value of the variables as they may change before the delayed execution occurs.

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