ncuillery

I did some measurements of the "warm-up" time of both version 0.8.2 and 0.9.0.

I've add Date.now() here and here, and I did the same on the equivalent lines on master.

0.8.2

All tests:

$ jest

ncuillery

       $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
       $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
       $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
       $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
       $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
       $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$..........................................$$$$$$$$$$$$$$$$$$$$
       $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$........................... ... .........I$$$$$$$$$$$$$$$$$$$$
       $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$........................................$$$$$$$$$$$$$$$$$$$$$
       $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$....,$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$....I$$$$$$$$$$$$$$$$$$$$$

ncuillery

Exercice JavaScript

Sujet

Créer une application web mono-page de suivi de match de ⚽ en direct.

Voir l'image fournie dans ce Gist pour l'exemple (capture d'écran d'un direct sur http://www.lequipe.fr)

Contraintes

ncuillery

# In the root directory of a project using RN 0.32:

export GIT_DIR=.gitrn                    # From this line, all git commands will deal with the .gitrn directory, leaving the .git directory untouched
export GIT_WORK_TREE=.                   # I should tell Git the working tree hasn't changed

git init                                 # Create the .gitrn directory

git add .                                # Stage the user's files
git reset -- .gitrn                      # Remove the internal Git files from the index (Git seems to not handle custom GIT_DIR very well...)
git commit -m "Project snapshot"         # Commit them, the user's files are now known in the new repo index

ncuillery

# In the root directory of a project, the Git working copy must be clean:

echo "a" | react-native upgrade          # Generate the current version template and overwrite all files

git add .
git commit -m "Old version"              # The current version template is added to the index

npm i react-native@latest --save         # Install the new version of React Native

echo "a" | react-native upgrade          # Generate the new version template and overwrite all files

ncuillery

03-08 12:37:31.330 9886-23047/com.zero40app I/ReactNativeJS: JS->N : Timing.createTimer([3702,1,1488973051337,false])
03-08 12:37:31.490 9886-23047/com.zero40app I/ReactNativeJS: N->JS : RCTDeviceEventEmitter.emit(["websocketFailed",{"message":"Failed to connect to localhost/127.0.0.1:8097","id":124}])
03-08 12:37:31.490 9886-23047/com.zero40app I/ReactNativeJS: JS->N : Timing.createTimer([3705,2000,1488973051506,false])
03-08 12:37:31.500 9886-23047/com.zero40app I/ReactNativeJS: N->JS : JSTimersExecution.callTimers([[3704]])
03-08 12:37:31.500 9886-23047/com.zero40app I/ReactNativeJS: JS->N : UIManager.updateView([230,"RCTView",{"transform":[{"translateX":-20.096506866822693}]}])
03-08 12:37:31.500 9886-23047/com.zero40app I/ReactNativeJS: JS->N : UIManager.updateView([232,"RCTView",{"transform":[{"translateX":-20.096506866822693}]}])
03-08 12:37:31.510 9886-23047/com.zero40app I/ReactNativeJS: JS->N : UIManager.updateView([233,"RCTView",{"transform":[{"translateX":-20.096506866822693}]}])
03-08 12:37:31.51

ncuillery

import React, { Component } from 'react';
import {
  AppRegistry,
  StyleSheet,
  Animated,
  Text,
  Image,
  View,
  ListView,
  TouchableWithoutFeedback,

ncuillery

const filteredPersons = _.filter(persons, person => person.age < 30);
const sortedPersons = _.sortBy(filteredPersons, person => person.age);
const names = _.map(sortedPersons, person => person.name);

ncuillery

const names = _.chain(persons)
  .filter(person => person.age < 30)
  .sortBy(person => person.age)
  .map(person => person.name)
  .value();

ncuillery

import { View } from 'react-native';