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Singleton

  1. Roll-your-own lazy singleton

    public final class Single {
        private static Single INSTANCE;
        private Single() {}
        
@rupeshtiwari
rupeshtiwari / Setting up Webpack for Typescript Project From Scratch.md
Last active October 23, 2025 03:34
Setting up Webpack for Typescript Project From Scratch

Setting up Webpack for any Typescript project from Scratch

Welcome to step by step hands-on guide to setup webpack in your upcoming typescript project. Please follow the steps and you should be able to create your own webpack project. Please download the source code from github.

You will learn below things:

  1. ✅Create a Typescript node.js project.
  2. ✅Install Dependencies with webpack & typescripts.
  3. ✅Use Webpack CLI to crate webpack.config.js file and modify webpack.config.js based on our need.
@otikev
otikev / StereoVolumeProcessor.java
Created March 14, 2019 19:16
An ExoPlayer AudioProcessor that can independently set volumes of left or right stereo channels
public class StereoVolumeProcessor implements AudioProcessor {
private int channelCount;
private int sampleRateHz;
private int[] pendingOutputChannels;
private boolean active;
private int[] outputChannels;
private ByteBuffer buffer;
private ByteBuffer outputBuffer;
@JoseAlcerreca
JoseAlcerreca / Event.kt
Created April 26, 2018 10:25
An event wrapper for data that is exposed via a LiveData that represents an event.
/**
* Used as a wrapper for data that is exposed via a LiveData that represents an event.
*/
open class Event<out T>(private val content: T) {
var hasBeenHandled = false
private set // Allow external read but not write
/**
* Returns the content and prevents its use again.
<?php
define('BOT_TOKEN', 'XXXXXXXX:XXXXXXXXXXXXXXXXXXXXXXXX'); // place bot token of your bot here
function checkTelegramAuthorization($auth_data) {
$check_hash = $auth_data['hash'];
unset($auth_data['hash']);
$data_check_arr = [];
foreach ($auth_data as $key => $value) {
$data_check_arr[] = $key . '=' . $value;
@elizarov
elizarov / Debounce.kt
Last active August 26, 2019 00:19
Debounce
import kotlinx.coroutines.experimental.DefaultDispatcher
import kotlinx.coroutines.experimental.channels.ReceiveChannel
import kotlinx.coroutines.experimental.channels.consumeEach
import kotlinx.coroutines.experimental.channels.produce
import kotlinx.coroutines.experimental.delay
import kotlinx.coroutines.experimental.runBlocking
import kotlin.coroutines.experimental.CoroutineContext
fun <T> ReceiveChannel<T>.debounce(
wait: Long = 300,
@ipepe
ipepe / install-chrome-headless.sh
Last active February 10, 2025 16:14
Installing headless chrome on Ubuntu.
#!/bin/bash
# from https://chromium.woolyss.com/
# and https://gist.github.com/addyosmani/5336747
# and https://chromium.googlesource.com/chromium/src/+/lkgr/headless/README.md
sudo apt-get update
sudo apt-get install software-properties-common
sudo add-apt-repository ppa:canonical-chromium-builds/stage
sudo apt-get update
sudo apt-get install chromium-browser
chromium-browser --headless --no-sandbox http://example.org/
@agentcooper
agentcooper / 0.README.md
Last active May 15, 2025 05:56
Telegram chat backup/export

How to use

  1. Login to https://web.telegram.org
  2. Copy-paste contents of telegram-scripts.js into JS console
  3. Run showContacts() to get the list of contacts with ids
  4. Run saveChat(userId) where userId is the id from step 3

Process can take a while, check console for progress. Occasionall FLOOD_WAIT errors are expected. Once done, browser will download the JSON file.

Motivation

@amake
amake / android-7-localization.org
Last active April 21, 2025 17:10
Correct localization on Android 7

Correct localization on Android 7

Prior to Android 7, the system had a single preferred locale, and fallback behavior was quite rudimentary. Starting with Android 7, the user can now specify a priority list of locales, and fallback behavior is improved.

However, in many cases it is still surprisingly difficult to make full use of locale fallback, and there are some hidden gotchas when trying to fully support both Android 7 and earlier versions.

@LouisCAD
LouisCAD / BitFlags.kt
Last active December 24, 2022 16:28
Allows simple bit flags operation on int values in kotlin. Now available in Splitties: https://github.com/LouisCAD/Splitties/tree/master/modules/bitflags Inspired by: http://stackoverflow.com/a/40588216/4433326
@file:Suppress("NOTHING_TO_INLINE")
import kotlin.experimental.and // Used for Byte
import kotlin.experimental.inv // Used for Byte
import kotlin.experimental.or // Used for Byte
inline fun Int.hasFlag(flag: Int) = flag and this == flag
inline fun Int.withFlag(flag: Int) = this or flag
inline fun Int.minusFlag(flag: Int) = this and flag.inv()