@types/ndarray

Installation

npm install --save @types/ndarray

Summary

This package contains type definitions for ndarray (https://github.com/scijs/ndarray).

Details

Files were exported from https://github.com/DefinitelyTyped/DefinitelyTyped/tree/master/types/ndarray.

index.d.ts

declare function ndarray<D extends ndarray.Data = ndarray.Data<number>>(
    data: D,
    shape?: number[],
    stride?: number[],
    offset?: number,
): ndarray.NdArray<D>;

declare namespace ndarray {
    interface NdArray<D extends Data = Data<number>> {
        data: D;
        shape: number[];
        stride: number[];
        offset: number;
        dtype: DataType<D>;
        size: number;
        order: number[];
        dimension: number;
        get(...args: number[]): Value<D>;
        set(...args: number[]): Value<D>;
        index(...args: number[]): Value<D>;
        lo(...args: number[]): NdArray<D>;
        hi(...args: number[]): NdArray<D>;
        step(...args: number[]): NdArray<D>;
        transpose(...args: number[]): NdArray<D>;
        pick(...args: Array<number | null>): NdArray<D>;
        T: NdArray<D>;
    }

    interface GenericArray<T> {
        get(idx: number): T;
        set(idx: number, value: T): void;
        length: number;
    }

    type MaybeBigInt64Array = InstanceType<typeof globalThis extends { BigInt64Array: infer T } ? T : never>;
    type MaybeBigUint64Array = InstanceType<typeof globalThis extends { BigUint64Array: infer T } ? T : never>;

    type Data<T = any> = T extends number ? GenericArray<T> | T[] | TypedArray
        : T extends bigint ? GenericArray<T> | T[] | MaybeBigInt64Array | MaybeBigUint64Array
        : GenericArray<T> | T[];

    type TypedArray =
        | Int8Array
        | Int16Array
        | Int32Array
        | Uint8Array
        | Uint8ClampedArray
        | Uint16Array
        | Uint32Array
        | Float32Array
        | Float64Array;

    type Value<D extends Data> = D extends GenericArray<infer T> | Record<number, infer T> ? T : never;

    type DataType<D extends Data = Data> = D extends Int8Array ? "int8"
        : D extends Int16Array ? "int16"
        : D extends Int32Array ? "int32"
        : D extends Uint8Array ? "uint8"
        : D extends Uint8ClampedArray ? "uint8_clamped"
        : D extends Uint16Array ? "uint16"
        : D extends Uint32Array ? "uint32"
        : D extends Float32Array ? "float32"
        : D extends Float64Array ? "float64"
        : D extends MaybeBigInt64Array ? "bigint64"
        : D extends MaybeBigUint64Array ? "biguint64"
        : D extends GenericArray<unknown> ? "generic"
        : "array";
}

export = ndarray;

Additional Details

• Last updated: Wed, 18 Oct 2023 05:47:08 GMT
• Dependencies: none

Credits

These definitions were written by Giff Song, taoqf, and Axel Bocciarelli.