bparanj

# RSpec matcher to spec delegations.
#
# Usage:
#
#     describe Post do
#       it { should delegate(:name).to(:author).with_prefix } # post.author_name
#       it { should delegate(:month).to(:created_at) }
#       it { should delegate(:year).to(:created_at) }
#     end

bparanj

# Have you ever had to sleep() in Capybara-WebKit to wait for AJAX and/or CSS animations?

describe 'Modal' do
  
  should 'display login errors' do
    visit root_path
    click_link 'My HomeMarks'
    within '#login_area' do
      fill_in 'email', with: '[email protected]'
      fill_in 'password', with: 'test'

bparanj

require 'aws-sdk'
  
s3 = Aws::S3::Resource.new(
  region: 'us-east-1',
  credentials: Aws::InstanceProfileCredentials.new()
)
bucket =  s3.bucket('my-daily-backups')

file = (DateTime.now).strftime("%Y.%m.%d-backup")
if bucket.object(file).exists?

bparanj

#!/bin/sh

# Set up Rails app. Run this script immediately after cloning the codebase.

# Exit if any subcommand fails
set -e

# Copy over configs
if ! [ -f .env ]; then
  cp .sample.env .env

bparanj

version: 2
jobs:
  build:
    environment:
    working_directory: ~/circleci-myapp
    docker:
      - image: circleci/ruby:2.4.2-node-browsers
        environment:
          CC_TEST_REPORTER_ID: XXXYYY
          RAILS_ENV: test

bparanj

Largest 1000 Cities in America
2013 popuation data - Biggest US Cities By Population

rank,city,state,population,2000-2013 growth

1,New York,New York,8405837,4.8%
2,Los Angeles,California,3884307,4.8%
3,Chicago,Illinois,2718782,-6.1%
4,Houston,Texas,2195914,11.0%
5,Philadelphia,Pennsylvania,1553165,2.6%

bparanj

Interval Operations

There are a few operations that can be performed on intervals:
1. Merge  interval[] s.t. the all intervals are disjoint.
		[0,5],[5,7] ==> [0,7]
2. Insert interval into interval[] s.t. all intervals are disjoint.
3. Find intersection between two interval[].
		[0,5],[5,7] => [5,5]

In order to perform these operations, it is important to understand the 6

bparanj

# 1004: Max ConsecutiveOnes III
	maxLength = 0
	numZeros = 0

# 1052: Grumpy Bookstore Owner
	maxCustWhenGrumpy = 0
	idxOfStartX = 0
	custWhenGrumpy = 0

# 1456: Max Number of Vowels in Substring of given length

bparanj

class Solution(object):
    def insert(self, intervals, newInterval):
        """
        :type intervals: List[List[int]]
        :type newInterval: List[int]
        :rtype: List[List[int]]
        """
        '''
        Test cases
        i) [], [2,5] => [[2,5]]

bparanj

# Definition for a binary tree node.
# class TreeNode:
#     def __init__(self, x):
#         self.val = x
#         self.left = None
#         self.right = None

class Solution:
    def lowestCommonAncestor(self, root: 'TreeNode', p: 'TreeNode', q: 'TreeNode') -> 'TreeNode':
        '''