davidecavaliere

[…]
 third subscriber 3 sec later, ttl expired. shoult hit the endpoint
 arguments are
 [1]
 argsNotChanged
 true
 this actually hit the endpoint
 starting subscribed
 {page: 1, per_page: 6, total: 12, total_pages: 2…}
 first subscribed

davidecavaliere

setTimeout(() => {
  this.$log.d('starting subscriber');
  this.userService.findAll(1).subscribe((data) => {
    this.$log.d('starting subscribed');
    this.$log.d(data);
    this.users = data;
  })
}, 0);
setTimeout(() => {

davidecavaliere

export function Cache(options: CacheOptions) {

  let lastCallArguments: any[] = [];

  return (target, propertyKey: string, descriptor) => {


    Reflect.metadata(CacheMetadata, options)(target);

davidecavaliere

@Injectable()
export class UserService {
  constructor(private _client: HttpClient) {}
  
  @Cache({
    ttl: 2500
  })
  public findAll(id): Observable<any> {
    return this._client.get(`https://reqres.in/api/users?page=${id}`)
  }

davidecavaliere

export interface CacheOptions {
  ttl: number;
}
export function Cache(options: CacheOptions) {
  return (target: any, propertyKey: string, descriptor) => {
    const originalFunction = descriptor.value;
    target[`${propertyKey}_cached`] = new ReplaySubject(1, options.ttl);
    descriptor.value = function(…args) {
      const req = originalFunction.apply(this, args).pipe(

davidecavaliere

@Injectable()
export class UserService {
  private cached$: ReplaySubject<any> = new ReplaySubject(1, 2500);

  constructor(private _client: HttpClient) {}

   public findAll(id): Observable<any> {
     const req = this._client.get(`https://reqres.in/api/users?page=${id}`).pipe(
       tap((data) => {
         this.cached$.next(data);

davidecavaliere

@Injectable()
export class UserService {
  constructor(private _client: HttpClient) {}
  public findAll(id: number) {
    return this._client.get(`https://reqres.in/api/users?page=${id}`);
  }
}

davidecavaliere

/*
  For more info please head to https://github.com/davidecavaliere/flatten
*/

function* flatten([head, ...tail]) {

  if (Array.isArray(head)) {
    yield* flatten(head);
  } else {
    yield head;

davidecavaliere

import itertools;

permutations = itertools.permutations([100,250,1000, 1200]);

times = []

for it in permutations :
	print it
	presum = 0;
	roundTrip = []

davidecavaliere

var start = process.hrtime();



// you can use console.log for debugging purposes, i.e.
// console.log('this is a debug message');

function solution(X, A) {
    // write your code in JavaScript (Node.js 0.12)
    var isEven = A.length % 2 === 0;