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typescript and node.js: stripping names from an array of objects (detailed tutorial)

this tutorial will guide you through creating a node.js application using typescript that takes an array of objects (representing people with names and potentially other properties) and strips the names from each object. we'll cover the basics of setting up a node.js project with typescript, defining interfaces, implementing the name stripping logic, handling edge cases, and writing unit tests to ensure your code is robust.

*prerequisites:*

*node.js and npm (or yarn):* ensure you have node.js and its package manager installed. you can download them from [https://nodejs.org/](https://nodejs.org/). verify the installation by running `node -v` and `npm -v` (or `yarn -v`) in your terminal.
*basic javascript knowledge:* a basic understanding of javascript syntax and concepts is essential.

*1. project setup*

first, create a new directory for your project:



initialize a new node.js project with `npm`:



this will create a `package.json` file.

*2. typescript configuration*

install typescript as a development dependency:



generate a `tsconfig.json` file:



this creates a basic typescript configuration file that you can customize. let's modify it to suit our needs. open `tsconfig.json` in your editor and make the following changes (as a starting point; adapt based on your specific requirements):



*explanation of `tsconfig.json` options:*

`target`: specifies the ecmascript target version for compilation. `es2016` is a good balance of compatibility and features.
`module`: specifies the module system to use. `commonjs` is suitable for node.js.
`esmoduleinterop`: enables compatibility between commonjs and es modules.
`forceconsistentcasinginfilenames`: enforces consistent casing for file names, preventing potential errors.
`strict`: enables strict type checking for enhanced code safety. this is highly recommended!
`skiplibcheck`: s ...

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