ElenaG518

As a user I should be able to login
As a user I should be able to register
as a user I should be able to stay logged in indefinitely until I log out
as a user I should be able to select a category of items
as a user I should be able to purchase items from the results of the category search
as a user I should be able to pick different items and save them to my wishlist
as a user I should be able to edit or delete items from my wishlist

ElenaG518

Even or odd -- constant O(1)
Are you here? -- polynomial O(n^2)
Doubler -- linear O(n)
Naive Search -- linear O(n)
Creating pairs -- polynomial O(n^2)
Computing fibonaccis -- linear O(n)
An Efficient Search -- logarithmic O(log n)
Random element-- constant O(1)
Is it prime? -- linear O(n)

ElenaG518

What is 2^5 in binary?
100000 = 32 = [1]*2^(5)+ [0]*2^(4) + [0]*2^(3) + [0]*2^(2) + [0]*2^(1) + [0]*2^(0))

What is 2^5 - 1 in binary?
011111 = 31 = [0]*2^(5)+ [1]*2^(4) + [1]*2^(3) + [1]*2^(2) + [1]*2^(1) + [1]*2^(0))

What is the general rule for binary numbers which are of the form 2^n or 2^n - 1?
They are the One's complement fo each other, or the inverse binary digits of each other. 

ElenaG518

Write a function that takes an integer value and checks to see if it is even or odd using the bit-wise AND operator. 
Hint: Think about what the value of the least-significant bit will be for even and odd numbers.

function evenOrOdd(int) {
  if (int & 1) {
    console.log(`${int} is an odd number`);
  } else if (!(int & 1)) {
    console.log(`${int} is an even number`);
  }
}

ElenaG518

Hello!  I’m Elena Granados. I’m a fullstack developer with a background in finance. 

I’m currently living in west Los Angeles.  I enjoy technology, music, nature, sustainability, and letting my mind imagine ways in which we can create a better world.  I enjoy the potential that web development has in creating unique solutions to everyday problems in an easy, convenient, an approachable way.   

There are many challenges to solve, and I want to be part of the solution, so let’s get started!

ElenaG518

https://elenag518.github.io/portfolio/

ElenaG518

Lesson 1 - Iterations
- BinaryGap - https://codility.com/demo/results/trainingU2FQPQ-7Y4/

Lesson 2 - Arrays
- OddOccurrencesInArray - https://codility.com/demo/results/trainingFN5RVT-XQ4/
- CyclicRotation - https://codility.com/demo/results/trainingSH2W5R-RP5/

Lesson 3 - Time Complexity
- FrogJmp - https://codility.com/demo/results/training6KKWUD-BXJ/
- PermMissingElem - https://codility.com/demo/results/training58W4YJ-VHA/

ElenaG518

import { TestBed, ComponentFixture } from "@angular/core/testing"
import { NO_ERRORS_SCHEMA } from "@angular/core";
import { HeroesComponent } from "./heroes.component";
import { HeroService } from "../hero.service";
import { of } from "rxjs";
import { HeroComponent } from "../hero/hero.component";
import { By } from "@angular/platform-browser";


describe('Hero Component', () => {

ElenaG518

import { DebugElement } from "@angular/core";
import { ComponentFixture, TestBed } from "@angular/core/testing"
import { By } from "@angular/platform-browser";
import { HeroComponent } from "./hero.component"


describe('HeroComponent (integration tests)', () => {
    let fixture: ComponentFixture<HeroComponent>;

    beforeEach(() => {