r3dm1ke

def logging_decorator(func):
  def logging_wrapper(*args, **kwargs):
    print(f'Before {func.__name__}')
    result = func(*args, **kwargs)
    print(f'After {func.__name__}')
    return result
  return logging_wrapper

def log_all_class_methods(cls):
    class NewCls(object):

r3dm1ke

class Logging: 
  
    def __init__(self, function): 
        self.function = function 
  
    def __call__(self, *args, **kwargs):
      print(f'Before {self.function.__name__}')
      self.function(*args, **kwargs)
      print(f'After {self.function.__name__}')
  

r3dm1ke

def permission_decorator(permission):
  def _permission_decorator(func):
    def permission_wrapper(*args, **kwargs):
      if someUserApi.hasPermission(permission):
        result = func(*args, **kwargs)
        return result
      return None
    return permission wrapper
  return _permission_decorator

r3dm1ke

def timer_decorator(func):
  def timer_wrapper(*args, **kwargs):
    import datetime                 
    before = datetime.datetime.now()                     
    result = func(*args,**kwargs)                
    after = datetime.datetime.now()                      
    print "Elapsed Time = {0}".format(after-before)      
    return result
    
@timer_decorator

r3dm1ke

def logging_decorator(func):
  def logging_wrapper(*args, **kwargs):
    print(f'Before {func.__name__}')
    func(*args, **kwargs)
    print(f'After {func.__name__}')
  return logging_wrapper
    
@logging_decorator
def sum(x, y):
  print(x + y)

r3dm1ke

import React, {Component, useState} from 'react';

// Class
class App extends Component {
  constructor(props) {
    super(props);
    this.state = {counter: 0};
  }
  
  render() {

r3dm1ke

import 'package:flutter/material.dart';
import 'package:flutter_bloc/flutter_bloc.dart';
import 'counter.dart';

void main() => runApp(CounterApp());

class CounterApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(

r3dm1ke

class CounterPage extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    final CounterBloc counterBloc = BlocProvider.of<CounterBloc>(context);

    return Scaffold(
      appBar: AppBar(title: Text('BLoC Demo')),
      body: BlocBuilder<CounterBloc, int>(builder: (context, count) {
        return Center(
            child:

r3dm1ke

const App = () => {
  const [resource, setResource] = useState(initialResource);
  const [startTransition, isPending] = useTransition({timeoutMs: 1000});
  return (
    <>
      <button 
        disabled={isPending}
        onClick={() => {
          startTransition(() => {
            setResource(carResource);

r3dm1ke

import React, {Suspense} from 'react';

const cars = loadCarsFromServer(); // Start loading early

const App = () => (
  <Suspense fallback={<h1>Loading cars</h1>}>
    <CarDetails />
  </Suspense>
);