chart.js
Version:
Simple HTML5 charts using the canvas element.
31 lines (23 loc) • 1.06 kB
TypeScript
/* eslint-disable @typescript-eslint/ban-types */
// DeepPartial implementation taken from the utility-types NPM package, which is
// Copyright (c) 2016 Piotr Witek <piotrek.witek@gmail.com> (http://piotrwitek.github.io)
// and used under the terms of the MIT license
export type DeepPartial<T> = T extends Function
? T
: T extends Array<infer U>
? _DeepPartialArray<U>
: T extends object
? _DeepPartialObject<T>
: T | undefined;
type _DeepPartialArray<T> = Array<DeepPartial<T>>
type _DeepPartialObject<T> = { [P in keyof T]?: DeepPartial<T[P]> };
export type DistributiveArray<T> = [T] extends [unknown] ? Array<T> : never
// https://stackoverflow.com/a/50375286
export type UnionToIntersection<U> = (U extends unknown ? (k: U) => void : never) extends (k: infer I) => void ? I : never;
export type AllKeys<T> = T extends any ? keyof T : never;
export type PickType<T, K extends AllKeys<T>> = T extends { [k in K]?: any }
? T[K]
: undefined;
export type Merge<T extends object> = {
[k in AllKeys<T>]: PickType<T, k>;
};