Aaron Plahn

In this series, I will journal my efforts to transpile JSON data schemas for commands in our TypeScript system to Pydantic data classes. This will allow our team to regain static type safety while accessing the best the Python ecosystem has for text and media file mainpulation in bulk data

This is part 1 of a series of articles about TypeScript decorators. Keep an eye out for additional articles! One possible target for a TypeScript decorator is a method.  The API of a method decorator is as follows declare type MethodDecorator = <T>(target: Object, propertyKey: string | symbol, descriptor:

Lesson 3: Array.reduceOverviewSo far, we've seen Array.map and Array.filter. These allowed us to apply some logic (via an arrow function) independently to each element in an array. Sometimes we want to maintain a running total of applying some calculation to every element instead. A basic example would

Array.filterOverviewArray.filter provides a declarative API for filtering arrays. That is, it allows you to build a new array that contains all of the elements of an original array that satisfy some condition. ScenarioUse Array.filter when you need to exclude some elements from an existing array for the

Lesson 1: Array.mapOverviewArray.map provides a declarative API for iterating over an array elements with the intention of building a new array of the same size. Array.map returns a new array instead of mutating the original array in place. ScenarioUse Array.map when you want to build a

An enum (short for "enumerated type") is a data type that contains a finite number of allowed values, each with its own identifier. In TypeScript, an enum's values can be string or number. String EnumsConsider the following enum definition. We have named this enum Planet. It is conventional to use

If you type a variable with as string, you can assign any other string to that variable without getting a compiler error. A slightly different scenario is when defining a constant whose value is a string. In that case, there is no point to type the constant; rather we can