What are the different types in TypeScript?
TypeScript has several built-in types, including number, string, boolean, any, void, null, and undefined.
Can you explain the 'any' type?
The 'any' type in TypeScript allows you to opt-out of type checking. It can hold any value, but it sacrifices type safety.
What about union types?
Union types allow you to define a variable that can hold multiple types. For example, string | number
means it can be either a string or a number.
How do I create a custom type?
You can create a custom type using the type
keyword or interface
. For example, type User = { name: string; age: number; }
.
Are there any best practices for using types?
Yes, it's best to use specific types instead of 'any', leverage interfaces for object shapes, and use enums for fixed sets of values.
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