Package Exports

@lopatnov/namespace

This package does not declare an exports field, so the exports above have been automatically detected and optimized by JSPM instead. If any package subpath is missing, it is recommended to post an issue to the original package (@lopatnov/namespace) to support the "exports" field. If that is not possible, create a JSPM override to customize the exports field for this package.

Readme

@lopatnov/namespace

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Dynamic namespace creation

Install

npm install @lopatnov/namespace

Browser

<script src="//lopatnov.github.io/namespace/dist/namespace.min.js"></script>

Import package to the project

TypeScript

import Namespace from "@lopatnov/namespace";

JavaScript

var Namespace = require("@lopatnov/namespace");

TypeScript and JavaScript samples

new operator

var n = new Namespace("Hello.World");
console.log((n as any).Hello.World instanceof Namespace);

window.globalSpace = new Namespace(
  "Eeny.meeny.miny.moe[Catch][a][tiger][by][the][toe]"
);
console.log(Eeny.meeny.miny.moe.Catch.a.tiger.by.the.toe);

direct call

var n = Namespace("A.Pacific.Ocean"); // <-- without new
console.log(n.A.Pacific.Ocean instanceof Namespace);

apply namespace object to another

var x = new Namespace("Games.World");
var y = {};
var z = x.goto("Games.World");

x.applyTo(y, "Hello");
console.log(z === y.Hello.Games.World); // true

var space: any = {};
var n = new Namespace("cruising.airliner");
n.applyTo(space, "A"); // <-- applyTo(context: any, name: string): void
console.log(space.A.cruising.airliner instanceof Namespace);

get inner object

var n: any = new Namespace("Yellow.Submarine");
var y = n.goto("Yellow.Submarine"); // <-- goto(path: NamespacePath): any
console.log(y === n.Yellow.Submarine);

make inner namespace

const glob: Namespace & any = new Namespace();

function namespace(path: string) {
  return function (
    target: any,
    propertyKey?: string,
    descriptor?: PropertyDescriptor
  ) {
    const ns = glob.namespace(path); // <-- make inner namespace
    const name = propertyKey || target.prototype.constructor.name;
    ns[name] = propertyKey ? target[propertyKey] : target;
  };
}

@namespace("white.animals")
class Actions {
  @namespace("white.animals")
  makeAlbino(animal: string) {
    return `${animal} is white now`;
  }
}

console.log(glob.white.animals.makeAlbino("unicorn")); // 'unicorn is white now'
console.log(new glob.white.animals.Actions().makeAlbino("rose panther")); // 'rose panther is white now'

check if path exists

const ns = new Namespace();
ns.namespace("a.b.c.d");
ns.namespace("a.b.c.e");
ns.namespace("a.b.f.g");
ns.namespace("a.i.h.k");
ns.namespace("a.i.h.l");
ns.namespace("a.m.n.o");

console.log(ns.exists('a.b.c.d'));
console.log(ns.exists('a.b.c.e'));
console.log(ns.exists('a.b.f.g'));
console.log(ns.exists('a.i.h.k'));
console.log(ns.exists('a.i.h.l'));
console.log(ns.exists('a.m.n.o'));

Demo

See, how it's working: https://runkit.com/lopatnov/namespace

Test it with a runkit: https://npm.runkit.com/@lopatnov/namespace

Rights and Agreements

License Apache-2.0