BetterProgramming

const selectionSort = (nums) => {
  checkLoopInvariant(nums, input, 0) //check during initialization
  for (let i = 0; i < nums.length - 1; i++) {
    checkLoopInvariant(nums, input, i) //check at each iteration
  }
  
  checkLoopInvariant(nums, input, nums.length) //check at the 
  return nums
}

BetterProgramming

let smallest = nums[i]
let swapIndex = i

// Search the remainder of the array for the smallest number
for (let j = i + 1; j < nums.length; j++) {
  if (nums[j] < smallest) {
    smallest = nums[j];
    swapIndex = j
  }
}

BetterProgramming

// see repo for full code

boolean milk;    
boolean soy;    
boolean mocha;    
boolean whip;

// and their getters and setters

public int cost() {

BetterProgramming

public abstract class Beverage {    
  String desc = "unknown beverage";     
  public String getDescription() {        
    return desc;    
  }
  public abstract int cost();
}

BetterProgramming

public class DarkRoast extends Beverage {
  public DarkRoast() {
    desc = "Dark roast";
  }
  @Override
  public int cost() {
    return 20;
  }
}

BetterProgramming

public abstract class CondimentDecorator extends Beverage {
    Beverage beverage;
    public abstract String getDescription();
}

BetterProgramming

public class Mocha extends CondimentDecorator {
  public Mocha(Beverage b) {
    beverage = b;
  }
  @Override
    public String getDescription() {
      return beverage.getDescription() + ", Mocha";
    }
  @Override
  public int cost() {

BetterProgramming

public class Mocha extends CondimentDecorator {
  public Mocha(Beverage b) {
    beverage = b;
  }
  @Override
    public String getDescription() {
      return beverage.getDescription() + ", Mocha";
    }
  @Override
  public int cost() {

BetterProgramming

# -*- coding: utf-8 -*-
import scrapy


class ElectronicsSpider(scrapy.Spider):
    name = "electronics"
    allowed_domains = ["www.olx.com.pk"]
    start_urls = ['http://www.olx.com.pk/']

    def parse(self, response):

BetterProgramming

from scrapy.spiders import CrawlSpider, Rule
from scrapy.linkextractors import LinkExtractor

class ElectronicsSpider(CrawlSpider):
    name = "electronics"
    allowed_domains = ["www.olx.com.pk"]
    start_urls = [
        'https://www.olx.com.pk/computers-accessories/',
        'https://www.olx.com.pk/tv-video-audio/',
        'https://www.olx.com.pk/games-entertainment/'