Implementing a Simple User Prompt in Node.js

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The Problem: Prompting User Input

The Solution: Using readline.Interface

Step-by-Step Implementation

[[See Video to Reveal this Text or Code Snippet]]

Explanation of the Code

Importing the Required Module: We start by importing the readline module, which is crucial for handling input from the user.

Processing User Input: We convert the input to a string and check it against acceptable values ('up', 'right', 'left'). Depending on the input, the output variable is set accordingly.

Displaying the Output: After checking the input, we print the corresponding movement response to the console.

Final Message: An event listener on close is added to output a farewell message when the interface is closed.

Common Issues and Tips

Invalid Input Handling: Always consider adding a fallback for invalid inputs to enhance user experience. In our code, a simple message is displayed if the input does not match any expected values.

Experiment: Feel free to modify the prompt message and output responses to suit your application's theme.