ahmedeltaher

image: openjdk:8-jdk

variables:
  ANDROID_COMPILE_SDK: "28"
  ANDROID_BUILD_TOOLS: "28.0.3"
  SDK_TOOLS: "4333796" # from https://developer.android.com/studio/#command-tools
  EMULATOR_VERSION: "22" # Unable to install with newer emulator versions. Don`t know why.
  
before_script:
  - wget --quiet --output-document=android-sdk.zip https://dl.google.com/android/repository/sdk-tools-linux-${SDK_TOOLS}.zip

ahmedeltaher

Description	Git Command
Clone an existing repository	git clone "your URL"
Create a new local repository	git init
Changed files in your working directory	git status
Changes to tracked files	git diff
Add all current changes to the next commit	git add
Add some chang

ahmedeltaher

Method Name	Fajr Angel	Isha Angel
Umm al-Qura University, Makkah	18.5	90 min after Maghrib , 120 min during Ramadan
MUHAMMADIYAH	20	18
Muslim World League (MWL)	18	17
Egyptian General Authority of Survey	19.5	17.5
University of Islamic Sciences, Karachi	18	18
Islamic Society of North America (ISNA)	15	15

ahmedeltaher

System Design Cheatsheet

Picking the right architecture = Picking the right battles + Managing trade-offs

Basic Steps

1. Clarify and agree on the scope of the system

• User cases (description of sequences of events that, taken together, lead to a system doing something useful)
  • Who is going to use it?
  • How are they going to use it?

ahmedeltaher

	Horizontal Scaling	Vertical Scaling
Load blancer	Required	N/A
Single point of failure	resilient	Yes, Suffering of a single point of failure
Communication	Network-Calls (RPC)	Internal process communication
Data Consistency	No	Yes
Scaling	Scales well as users increasing	HardWare limit

ahmedeltaher

[
    {
        "calories": "516 kcal",
        "carbos": "47 g",
        "description": "There\u2019s nothing like the simple things in life - the smell of freshly cut grass, sitting outside on a nice sunny day, spending time with friends and family. Well here is a recipe that delivers simple culinary pleasures - some nice fresh fish with a crispy crust, crunchy potato wedges and some delightfully sweet sugar snap peas flavoured with cooling mint. Slip into something comfortable and relax into a delicious dinner!",
        "difficulty": 0,
        "fats": "8 g",
        "headline": "with Sweet Potato Wedges and Minted Snap Peas",
        "id": "533143aaff604d567f8b4571",
        "image": "https://img.hellofresh.com/f_auto,q_auto/hellofresh_s3/image/533143aaff604d567f8b4571.jpg",

ahmedeltaher

Core Elements in Paging library:

• PagedList.
• Data source.

PagedList:

• collection.
• loads data in pages.
• Asynchronous data loading.

DataSource:

ahmedeltaher

Interview Questions

Kotlin

Q1: What is a primary constructor in Kotlin? ☆☆

Answer: The primary constructor is part of the class header. Unlike Java, you don't need to declare a constructor in the body of the class. Here's an example:

ahmedeltaher

Interview Questions

Kotlin

Q1: What is a primary constructor in Kotlin? ☆☆

Answer: The primary constructor is part of the class header. Unlike Java, you don't need to declare a constructor in the body of the class. Here's an example:

ahmedeltaher

echo "Running detekt check..."
OUTPUT="/tmp/detekt-$(date +%s)"
./gradlew detekt > $OUTPUT
EXIT_CODE=$?
if [ $EXIT_CODE -ne 0 ]; then
  cat $OUTPUT
  rm $OUTPUT
  echo "***********************************************"
  echo "                 Detekt failed                 "
  echo " Please fix the above issues before committing "