kenchoong

import Foundation
import AVFoundation

extension AVPlayer {
    
    var isPlaying: Bool {
        if (self.rate != 0 && self.error == nil) {
            return true
        } else {
            return false

kenchoong

<?php
/*
 * Add FCM Class
 */
class Google_Service_Fcm extends Google_Service
{
  /** Set URL for Google Cloud Platform services. */
  const CLOUD_PLATFORM = "https://www.googleapis.com/auth/cloud-platform";
  const FCM = "https://www.googleapis.com/auth/firebase.messaging";

kenchoong

# REF: http://www.quora.com/How-do-I-create-and-update-embedded-documents-with-MongoEngine

class Comment(EmbeddedDocument):
    content = StringField()
    name = StringField(max_length=120)


class Post(Document):
    title = StringField(max_length=120, required=True)
    author = StringField(required=True)

kenchoong

# Created by .ignore support plugin (hsz.mobi)
### Python template
# Byte-compiled / optimized / DLL files
__pycache__/
*.py[cod]
*$py.class

# C extensions
*.so

kenchoong

abstract class SharedPreferenceLiveData<T> extends LiveData<T> {

    SharedPreferences sharedPrefs;
    String key;
    T defValue;

    public SharedPreferenceLiveData(SharedPreferences prefs, String key, T defValue) {
        this.sharedPrefs = prefs;
        this.key = key;
        this.defValue = defValue;

kenchoong

import android.arch.lifecycle.LiveData
import android.content.SharedPreferences

abstract class SharedPreferenceLiveData<T>(val sharedPrefs: SharedPreferences,
                                  val key: String,
                                  val defValue: T) : LiveData<T>() {

  private val preferenceChangeListener = SharedPreferences.OnSharedPreferenceChangeListener { sharedPreferences, key ->
    if (key == this.key) {
      value = getValueFromPreferences(key, defValue)

kenchoong

docker container start <container_name>

// access the docker
docker exec -u root -it <container_name> /bin/sh

//here change ownership of a folder 
chown -R user_name:group_name <path/of/folder/that/need/to/change/permission>

//here change permission of a folder
chmod -R 755 /folder/path/that/need/to/change/permission

kenchoong

import * as path from 'path';
import * as cdk from '@aws-cdk/core';
import * as ddb from '@aws-cdk/aws-dynamodb';
import * as apiGatewayV2 from '@aws-cdk/aws-apigatewayv2';
import { LambdaProxyIntegration } from '@aws-cdk/aws-apigatewayv2-integrations';
import { NodejsFunction, NodejsFunctionProps } from '@aws-cdk/aws-lambda-nodejs';
import { HttpIntegration, HttpIntegrationType } from '@aws-cdk/aws-apigatewayv2';
import { dirname } from 'path';

const project_root_dir = path.join(dirname(__filename), '../')