Nikhil Jain nikhiljainlive

Semantic Commit Messages

See how a minor change to your commit message style can make you a better programmer.

Format: <type>(<scope>): <subject>

<scope> is optional

Example

iOS Interview Questions

Sources include, but not limited to:

In Swift, what is the difference between a struct and a class?

This is the full Cloud Functions code explained in my blog post: How to schedule a Cloud Function to run in the future (in order to build a Firestore document TTL)

Java

Not thread safe.

class SimpleSingleton {
    private static SimpleSingleton sInstance;
  
    private SimpleSingleton() {}

How to change your commit messages in Git?

At some point you’ll find yourself in a situation where you need edit a commit message. That commit might already be pushed or not, be the most recent or burried below 10 other commits, but fear not, git has your back 🙂.

Not pushed + most recent commit:

git commit --amend

This will open your $EDITOR and let you change the message. Continue with your usual git push origin master.

	exec > /tmp/${PROJECT_NAME}_archive.log 2>&1

	UNIVERSAL_OUTPUTFOLDER=${BUILD_DIR}/${CONFIGURATION}-universal

	if [ "true" == ${ALREADYINVOKED:-false} ]
	then
	echo "RECURSION: Detected, stopping"
	else
	export ALREADYINVOKED="true"

	# https://joshspicer.com/android-frida-1

	1. Find CPU type
	adb shell getprop ro.product.cpu.abi

	2. If it's arm64-v8a, for instance, download
	frida-server-12.6.11-android-arm64.xz [notice the arm64 in the server download]

	3. Extract frida-server-12.6.11-android-arm64.xz and
	adb push frida-server-12.6.11-android-arm64 /data/local/tmp/frida-server

	#!/bin/sh

	# This is part of my blog about AES: https://medium.com/p/7616beaaade9
	# Inspired by https://blog.filippo.io/the-ecb-penguin/

	# Convert your image to .ppm with Gimp or Photoshop
	#
	# Usage: ./ecb_img <image file as ppm> <password>

	# extract header and body