how to pause javascript code execution for 2 seconds

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## Pausing JavaScript Code Execution: A Deep Dive

Pausing the execution of JavaScript code for a specific duration (like 2 seconds) is a common requirement for various tasks, such as:

* **Creating animations and delays:** Introduce pauses between animation steps to make them visually appealing.
* **Simulating real-world processes:** Mimic the time it takes for an asynchronous operation to complete.
* **Rate limiting:** Prevent excessive calls to APIs or functions within a short period.
* **Adding a user experience element:** Introduce delays for loading indicators, messages, or other visual cues.

However, directly pausing JavaScript execution can be tricky. The primary reason is JavaScript's single-threaded nature within a browser environment. If you literally *pause* the thread, the entire browser interface will freeze, making your application unresponsive.

Therefore, we need approaches that achieve the desired delay *without* blocking the main thread. This tutorial will explore several methods, their advantages, disadvantages, and best-use cases:

**1. `setTimeout()`: The Classic Solution (and the Correct One for Most Scenarios)**

`setTimeout()` is the standard and preferred method for introducing delays in JavaScript. It allows you to schedule a function to be executed after a specified delay in milliseconds. Crucially, it does **not** block the main thread. It's asynchronous, meaning it tells the browser to run a function later, and the rest of your code continues to execute in the meantime.

**Syntax:**



* `functionToExecute`: The function that will be called after the delay. This can be an anonymous function (defined inline) or a reference to an existing function.
* `delayInMilliseconds`: The time to wait before executing the function, expressed in milliseconds (1000 milliseconds = 1 second).

**Example: Pausing for 2 Seconds**



**Explanation:**

1. `console.log("Start");` is executed immediately.
2. ` ...

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