Calvin-Huang

const User = require('./models/user');

description('Tag parser', () => {
  it('should parse tag stirng to query map, and remove query when user is not exists', async () => {
    // bob, id: 1
    // foo, id: 2
    // system is no such user
    const tagString = 'fav:bob fav:foo fav:system threshold:1';
    const queryMap = await tagString
      .split(/\s+/)

Calvin-Huang

store.subscribe(() => {
  const state = store.getState();
  const action = state.lastAction;

  switch (action.type) {
    case FETCH_PUBLIC_REPOS: {
      $.getJSON(`https://api.github.com/search/repositories?q=language:javascript&per_page=10&page=${action.page}`)
        .done((data) => {
          store.dispatch(receivePublicRepos(data.items));
        });

Calvin-Huang

store.subscribe(() => {
  const state = store.getState();
  const action = state.lastAction;
  switch (action.type) {
    case FETCH_PUBLIC_REPOS: {
      $.getJSON(`https://api.github.com/search/repositories?q=language:javascript&per_page=10&page=${action.page}`)
        .done((data) => {
          store.dispatch(receivePublicRepos(data.items));
        });
      break;

Calvin-Huang

function toggleBookmark(repoId) {
  const selectedRepo = repos.find(repo => repo.id === repoId);
  selectedRepo.is_saved = !selectedRepo.is_saved;

  $('#app').html(repoList.render({ repos: repos }));

  if (selectedRepo.is_saved) {
    const { full_name } = selectedRepo;
    createBookmark(repoId, full_name);
  } else {

Calvin-Huang

var repos = [];
var bookmarks = [];
var page = 1;

const repoList = $
  .templates(
    'repo-list',
    { markup: '#repo-list', templates: { repo: $.templates('#repo') } },
  );

Calvin-Huang

// Retry 5 times with waiting for 2 seconds
function* updateApi(data) {
  for(let i = 0; i < 5; i++) {
    try {
      const apiResponse = yield call(apiRequest, { data });
      return apiResponse;
    } catch(err) {
      if(i < 4) {
        yield call(delay, 2000);
      }

Calvin-Huang

// Debouncing
function* handleInput(input) {
  // debounce by 500ms
  yield call(delay, 500)
  ...
}

function* watchInput() {
  let task
  while (true) {

Calvin-Huang

// Throttling
function* handleInput(input) {
  // ...
}

function* watchInput() {
  yield throttle(500, 'INPUT_CHANGED', handleInput)
}

Calvin-Huang

// Retry 5 times without waiting
const inputEpic = (action$) =>
  action$.ofType('INPUT_CHANGED')
    .retry(5)
    ...
    
// Retry 5 times with waiting for 2 seconds
const inputEpic = (action$) =>
  action$.ofType('INPUT_CHANGED')
    .retryWhen(function(errors) {

Calvin-Huang

// Deboucing
const inputEpic = (action$) =>
  action$.ofType('INPUT_CHANGED')
    .debounceTime(500)
    ...