samteb

import { Component, Injector, OnInit } from '@angular/core';
import { Observable, Subscription } from 'rxjs';
import { tap } from 'rxjs/operators';
import { ListLevel } from './models/list-level.enum';
import { ArticleModel } from './models/article.model';
import { ApiService } from './services/api.service';
import { ListService, ListType } from './services/list/list.service';
import { AuthorsListService } from './services/list/authors-list.service';
import { ArticlesListService } from './services/list/articles-list.service';

samteb

import { Injectable } from '@angular/core';
import { combineLatest, Observable } from 'rxjs';
import { switchMap } from 'rxjs/operators';
import { ArticleModel } from '../../models/article.model';
import { ListService } from './list.service';

@Injectable()
export class ArticlesListService extends ListService {
  public listTitle = 'Interesting articles!';
  public showNbOfArticlesDropdown = false;

samteb

import { Injectable } from '@angular/core';
import { combineLatest, Observable } from 'rxjs';
import { switchMap } from 'rxjs/operators';
import { AuthorModel } from '../../models/author.model';
import { ListService } from './list.service';

@Injectable()
export class AuthorsListService extends ListService {
  public listTitle = 'Weekly best authors!';
  public showNbOfArticlesDropdown = true;

samteb

import { Injectable } from '@angular/core';
import { Observable } from 'rxjs';
import { ApiService } from '../api.service';
import { StoreService } from '../store.service';
import { PaginationModel } from '../../models/pagination.model';
import { ListLevel } from '../../models/list-level.enum';
import { AuthorModel } from '../../models/author.model';
import { ArticleModel } from '../../models/article.model';

export type ListType = AuthorModel[] | ArticleModel[];

samteb

this.listTitle$ = this.listLevel$.pipe(
    map(listLevel => {
        switch (listLevel) {
            case ListLevel.AUTHORS:
                return 'Trending authors that published few minutes ago!';
            case ListLevel.ARTICLES:
                return 'Best articles for you!';
            default:
                break;
        }

samteb

enum ListLevel {
    AUTHORS = 'AUTHORS',
    ARTICLES = 'ARTICLES'
}

interface Pagination {
    first: number;
    last: number;
}

samteb

class Node {
    constructor (value, priority) {
        this.value = value;
        this.priority = priority;
    }
}

class PriorityQueue {
    constructor () {
        this.values = [];

samteb

class Graph {
    constructor () {
        this.adjacencyList = {};
    }

    addVertex (vertex) {
        if (!this.adjacencyList[vertex]) this.adjacencyList[vertex] = [];
    }

    addEdge (vertex1, vertex2) {

samteb

class Node {
    constructor (value, priority) {
        this.value = value;
        this.priority = priority;
    }
}

class PriorityQueue {
    constructor () {
        this.values = [];

samteb

class MaxBinaryHeap {
    constructor () {
        this.values = [];
    }

    insert (value) {
        this.values.push(value);
        this.bubbleUp();
    }