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@antv/g2

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the Grammar of Graphics in Javascript

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/** * Calls a defined callback function on each key:value of a object, * and returns a object contains the result. */ export declare function mapObject<T, U>(object: Record<string, T>, callbackfn: (value: T, key?: string, object?: Record<string, T>) => U): Record<string, U>; export declare function indexOf<T>(array: T[]): number[]; /** * @example [[1, 2, 3], ['a', 'b', 'c']] => [[1, 'a'], [2, 'b'], [3, 'c']] */ export declare function transpose<T>(matrix: T[][]): T[][]; export declare function firstOf<T>(array: T[]): T; export declare function lastOf<T>(array: T[]): T; export declare function isFlatArray<T>(array: (T | T[])[]): array is T[]; export declare function unique<T>(array: T[]): T[]; export declare function divide<T>(array: T[], callbackfn: (item: T) => boolean): [T[], T[]]; /** * get all combinations of two elements in an array * @example [1, 2, 3] => [[1], [2], [3], [1, 2], [1, 3], [2, 3], [1, 2, 3]] * @param array * @returns */ export declare function combine<T>(array: T[]): T[][];