Artsiom Kuts starbeast

starbeast / gist:9cfbc9f499bff84a57db815a2dfa81d2

Created November 24, 2019 13:55

NaCl secret box (RbNaCl BE + TweetNaCl.js FE)

	Ruby - https://github.com/RubyCrypto/rbnacl
	JavaScript - https://github.com/dchest/tweetnacl-js

	## FE encrypt -> BE decrypt
	# FE
	const { publicKey, secretKey } = nacl.box.keyPair();
	// every time you encrypt change the nonce
	const nonce = nacl.randomBytes(nacl.secretbox.nonceLength);
	const encodedNonce = nacl.util.encodeBase64(nonce);
	const encodedPublic = nacl.util.encodeBase64(publicKey);

starbeast / example.ts

Last active June 5, 2017 20:34

Mixins + DI

	import {
	Injectable,
	Inject,
	OpaqueToken
	} from '@angular/core';

	let resolveParameters = function (target: any, params: any[]) {
	if(params) {
	params.forEach((param, index) => {
	// this code is needed to make @Inject work

starbeast / example.ts

Last active June 5, 2017 18:00

MixinInjectable

	let resolveParameters = function (target: any, params: any[]) {
	if(params) {
	params.forEach((param, index) => {
	// this code is needed to make @Inject work
	if (param && param.annotation && param.annotation instanceof Inject) {
	param(target, void 0, index);
	}
	});
	}
	return Reflect.getMetadata('parameters', target);

starbeast / example.ts

Last active June 5, 2017 17:57

Decorated mixin

	@MixinInjectable(Dependency, AnotherDependency, Inject(YetAnotherDependency))
	class Mixin extends Base {

	dependency: Dependency;
	anotherDependency: AnotherDependency;
	yetAnotherDependency: IYetAnotherDependency;

	constructor(...args: any[]) {
	super(...args.slice(3));
	this.dependency = args[0];

starbeast / example.ts

Created June 4, 2017 14:22

Mixin with constraints

	interface IPoint {
	x: number;
	y: number;
	}

	const WithLocation = <T extends Constructor<IPoint>>(Base: T) =>
	class extends Base {
	getLocation(): [number, number] {
	return [this.x, this.y];
	}

starbeast / example.ts

Last active April 16, 2019 07:56

TypeScript mixins example

	class Point {
	constructor(public x: number, public y: number) {}
	}

	class Person {
	constructor(public name: string) {}
	}

	type Constructor<T> = new(...args: any[]) => T;