albertstill

class PostIndex extends React.Component {
  state = { loading: false };

  componentDidMount() {
    window.onscroll = () => {
      if (!this.state.loading
        && (window.innerHeight + window.scrollY)
          >= document.body.offsetHeight) {

        this.setState({loading: true}, () => {

sebmarkbage

/** @jsx React.DOM */

var Graphic = React.createClass({ 

  componentDidMount: function() {
    var context = this.getDOMNode().getContext('2d');
    this.paint(context);
  },

  componentDidUpdate: function() {

chenglou

key is pretty much crucial for state perservation in React. As of React 0.13 it can't do the following things:

• Clone state

<Comp key={1} /><Comp key={1} />

• Preserve component state across different parents:

clouddueling

/**
 * http://fabricjs.com/js/kitchensink/controller.js
 * http://fabricjs.com/js/kitchensink/utils.js
 * http://fabricjs.com/js/kitchensink/app_config.js
 * http://fabricjs.com/events/
 * view-source:http://fabricjs.com/kitchensink/
 */

(function() {

slimsag

// replaceAllSubmatchFunc is the missing regexp.ReplaceAllSubmatchFunc; to use it:
//
// 	pattern := regexp.MustCompile(...)
// 	data = replaceAllSubmatchFunc(pattern, data, func(groups [][]byte) [][]byte {
// 		// mutate groups here
// 		return groups
// 	})
//
// This snippet is MIT licensed. Please cite by leaving this comment in place. Find
// the latest version at:

getify

// function copySession(sess) {
//    return { ...sess };
// }

var copySession = compose(
   reduce(
      compose(
         flip,
         binary,
         uncurry,

acdlite

// getComponent is a function that returns a promise for a component
// It will not be called until the first mount
function asyncComponent(getComponent) {
  return class AsyncComponent extends React.Component {
    static Component = null;
    state = { Component: AsyncComponent.Component };

    componentWillMount() {
      if (!this.state.Component) {
        getComponent().then(Component => {

davinkevin

package lan.dk.podcastserver.utils.multipart;

import lan.dk.podcastserver.utils.MimeTypeUtils;
import org.apache.commons.lang3.StringUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

paf31

This blog post series has moved here.

You might also be interested in the 2016 version.

idibidiart

Building a Maintainable, Agile Architecture for Realtime, Transactional Apps

A maintainable application architecture requires that the UI only contain the rendering logic and execute queries and mutations against the underlying data model on the server. A maintainable architecture must not contain any logic for composing "app state" on the client as that would necessarily embed business logic in the client. App state should be persisted to the database and the client projection of it should be composed in the mid tier, and refreshed as mutations occur on the server (and after network interruption) for a highly interactive, realtime UX.

With GraphQL we are able to define an easy-to-change application-level data schema on the server that captures the types and relationships in our data, and wiring it to data sources via resolvers that leverage our db's own query language (or data-oriented, uniform service APIs) to resolve client-specified "queries" and "mutations" against the schema.

We use GraphQL to dyn