Use Partial to Create Partially Fillable Types in TypeScript

Make your optional fields required in TypeScript

Create a Type with Some Fields of Another Type in TypeScript with Pick

Exclude Properties from a Type in TypeScript

Create Immutable Types in TypeScript

Ignore Null or Undefined Values with TypeScript Non-Null Assertion Operator

Create Type From Any Given Data in TypeScript

Create Dynamically Typed Strings Using Template Literal Types

Create Class Properties using Constructor Assignment

Avoid errors using unknown type

Create mapped types using Record type

Reduce duplicate types with Generic Types

Merge Types using Intersection Operator

Verify if some literal value satisfies a given type

TypeScript: Tips and Tricks

There might be times when you want to extend a type, i.e., to add new fields to it. Instead of copying the types and creating duplicates, the better way to do that is to use the intersection operator `&`. In this quick lesson, you will learn what it does and how you can use it to reduce duplicate types.

Merge Types using Intersection Operator

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TypeScript: Tips and Tricks