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34 lines
1.8 KiB
Markdown
34 lines
1.8 KiB
Markdown
<h1>Function overload</h1>
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> Author: Thomas Laforge
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### Information
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Angular uses TypeScript, and mastering TypeScript can help you avoid runtime errors by catching them at compile time.
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In this challenge, we have a function to create a vehicle. However, each vehicle type requires different mandatory properties.
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Currently, we are getting an error at runtime if one property is missing and we don't get the return Type, which is not ideal.
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One solution would be to create a separate function for each vehicle type, but for this challenge, I want to use the same function and have TypeScript automatically complete the properties depending on the type passed as the first parameter.
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To achieve this, we will use overload functions.
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### Statement
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- Use function overload
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### Submitting your work
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1. Fork the project
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2. clone it
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3. npm ci
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4. **`npx nx serve overload`**
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5. _...work on it_
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6. Commit your work
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7. Submit a PR with a title beginning with **Answer:15** that I will review and other dev can review.
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<a href="https://github.com/tomalaforge/angular-challenges/pulls?q=label%3A15+label%3Aanswer"><img src="https://img.shields.io/badge/-Solutions-green" alt="overload"/></a>
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<a href='https://github.com/tomalaforge/angular-challenges/pulls?q=label%3A15+label%3A"answer+author"'><img src="https://img.shields.io/badge/-Author solution-important" alt="overload solution author"/></a>
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<a href="https://medium.com/ngconf/function-overloading-in-typescript-8236706b2c05" target="_blank" rel="noopener noreferrer"><img src="https://img.shields.io/badge/-Blog post explanation-blue" alt="overload blog article"/></a>
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_You can ask any question on_ <a href="https://twitter.com/laforge_toma" target="_blank" rel="noopener noreferrer"><img src="./../../logo/twitter.svg" height=20px alt="twitter"/></a>
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