dabbjs/dist/lib/misc.d.ts

general javascript library

import { IPoint } from "./interfaces";
import { Point } from "./point";
import { Vector2D } from "./vec2d";
export declare const range: (s: number, e: number) => number[];
/**
 * loops through an object properties and returns it in a function
 * @param obj an object
 * @param fn a function as (value: any, key: string, ndx: number) => void
 */
export declare const each: <T>(obj: {
    [id: string]: any;
}, fn: (value: T, key: string, ndx: number) => void) => void;
/**
 * returns an array of all object properties mapped
 * @param obj an object
 * @param fn a function as (value: any, key: string, ndx: number) => any
 */
export declare const map: <T>(obj: {
    [id: string]: any;
}, fn: (value: T, key: string, ndx: number) => T) => T[];
/**
 * filters an object properties by a function
 * @param obj an object
 * @param fn a function as (value: any, key: string, ndx: number) => any
 */
export declare const filter: <T>(obj: {
    [id: string]: any;
}, fn: (value: T, key: string, ndx: number) => T) => {
    [id: string]: any;
};
/**
 *
 * @param obj an object to filter
 * @param fn if it returns true array[]= value (key is lost), if object array[] = object, otherwise discarded
 */
export declare const filterArray: <T>(obj: {
    [id: string]: any;
}, fn: (value: T, key: string, ndx: number) => T) => T[];
/**
 * get/set object property
 * @param o object
 * @param path path to property "a.b.c"
 * @param value undefined to get value, otherwise
 */
export declare const prop: (o: {
    [id: string]: any;
}, path: string, value?: any) => any;
/**
 * copy all properties in src to obj, and returns obj
 * @param obj dest object
 * @param src source object
 */
export declare const extend: (obj: {
    [id: string]: any;
}, src: {
    [id: string]: any;
}) => {
    [id: string]: any;
};
/**
 * copy properties in src that exists only in obj, and returns obj
 * @param obj dest and template object
 * @param src source object
 */
export declare const copy: (obj: {
    [id: string]: any;
}, src: {
    [id: string]: any;
}) => {
    [id: string]: any;
};
/**
 * creates a NxN matrix
 * @param rows amount of rows
 * @param cols amount of columns
 * @param filler cell filler
 */
export declare const matrix: <T>(rows: number, cols: number, filler: T) => T[][];
/**
* returns the points of an arrow and vector
* @param a first point
* @param b second point
* @param head arrow head length
* @param swipe swipe angle of head line
*/
export declare const arrow: (a: IPoint, b: IPoint, head: number, swipe: number) => {
    ang: number;
    v: Vector2D;
    a: Point;
    b: Point;
};