Kamilnaja

Array.prototype.range = function(start, stop) {
        let d = [];
        for (let i = start; i <= stop; i++) {
            d.push(i);
        }
        return d;
    }

Kamilnaja

string = "How good is have account on StackOverflow and create new posts"


def odd(data):
    idx, el = data
    return el if idx % 2 == 0 else el + "\n"


print(" ".join(list(map(odd, list(enumerate(string.split(" ")))))))

Kamilnaja

import { async, TestBed } from '@angular/core/testing';
import { Observable, of } from 'rxjs';
import { AppComponent } from './app.component';
import { HerbsService } from './herbs.service';
import { RouterTestingModule } from '@angular/router/testing';

class MockService {
  mockRespone = {
    data: [
      { id: 1, name: 'hello' },

Kamilnaja

class Knight {
  constructor(private name: string, private age: number) { }

  public getAge(): number {
    return this.age;
  }

  public getName(): string {
    return this.name;
  }

Kamilnaja

abstract class Beverage {
  description: string = "unknown beverage";
  public getDescription(): string {
    return this.description;
  }
  public abstract cost(): number;
}

abstract class CondimentDecorator extends Beverage {
  abstract getDescription(): string;

Kamilnaja

import { from } from "rxjs";
import { filter, reduce } from "rxjs/operators";

let candidates = [
    { name: 'Brendan Eich', experience: 'JavaScript Inventor' },
    { name: 'Emmet Brown', experience: 'Historian' },
    { name: 'George Lucas', experience: 'Sci-fi writer' },
    { name: 'Alberto Perez', experience: 'Zumba Instructor' },
    { name: 'Bjarne Stroustrup', experience: 'C++ Developer' }
];

Kamilnaja

type HTMLElementEvent<T extends HTMLElement> = Event & {
    target: T;
}

let res = allEvents$.subscribe((item: HTMLElementEvent<HTMLButtonElement>) => {
    console.log(item.target.value);
})

Kamilnaja

// I think, that this is an interesting answer. Check if object key exists, if yes, double

const columns = [
    { name: 'one', title: 'Order Number', id: 1 },
    { name: 'two', title: 'Strawberry', id: 2 },
    { name: 'three', title: 'Vanilla', id: 3 }
];

    const mapped = columns.map(
        item => item.id ? item.id = item.id * 2 : item

Kamilnaja

// So, you have input data like this

let objArr = [
    { id: 1, name: 'Kamil' },
    { id: 2, name: 'Janusz' },
    { id: 3, name: 'Mariusz' },
    { id: 4, name: 'Alina' },
    { id: 5, name: 'Olo' } ];

Kamilnaja

// so, you have list of users like this

const users = [
    { id: '1', name: 'hello' },
    { id: '2', name: 'world' },
    { id: '3', name: 'hello' },
    { id: '1', name: 'hello' },
    { id: '1', name: 'hello' },
]