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@mardambey
mardambey / testRunner.html
Created April 14, 2011 03:56
Simple test runner in JS.
<html>
<head>
<title>Mate1 Test Runner</title>
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.5.2/jquery.min.js"></script>
<script type="text/javascript">
// A test is the base class for all tests
// that will be run by the test runner.
Test = function() {
var Dialog = React.createClass({
render: function() {
// 1) render nothing, this way the DOM diff will never try to do
// anything to it again, and we get a node to mess with
return React.DOM.div();
},
componentDidMount: function() {
// 2) do DOM lib stuff
this.node = this.getDOMNode();
class Profile extends React.Component {
// etc.
}
function createContainer (Component) {
return class extends React.Component {
render () {
return <Component {...this.props}/>
}
}
@gaearon
gaearon / connect.js
Last active April 11, 2024 06:46
connect.js explained
// connect() is a function that injects Redux-related props into your component.
// You can inject data and callbacks that change that data by dispatching actions.
function connect(mapStateToProps, mapDispatchToProps) {
// It lets us inject component as the last step so people can use it as a decorator.
// Generally you don't need to worry about it.
return function (WrappedComponent) {
// It returns a component
return class extends React.Component {
render() {
return (

The unknown-prop warning will fire if you attempt to render a DOM element with a prop that is not recognized by React as a legal DOM attribute/property. You should ensure that your DOM elements do not have spurious props floating around.

There are a couple of likely reasons this warning could be appearing:

  1. Are you using {...this.props} or cloneElement(element, this.props)? Your component is transferring its own props directly to a child element (eg. https://facebook.github.io/react/docs/transferring-props.html). When transferring props to a child component, you should ensure that you are not accidentally forwarding props that were intended to be interpreted by the parent component.

  2. You are using a non-standard DOM attribute on a native DOM node, perhaps to represent custom data. If you are trying to attach custom data to a standard DOM element, consider using a custom data attribute (https://developer.mozilla.org/en-US/docs/Web/Guide/HTML/Using_data_attributes).

  3. React does not yet reco

@acdlite
acdlite / app.js
Last active January 20, 2023 08:23
Quick and dirty code splitting with React Router v4
// 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 => {
@mdo
mdo / 00-intro.md
Last active March 24, 2024 08:04
Instructions for how to affix an Ikea Gerton table top to the Ikea Bekant sit-stand desk frame.

Ikea Bekant standing desk with Gerton table top

@staltz
staltz / .bashrc
Created March 7, 2017 13:08
Show a macOS notification when a terminal task is done
# Name it whatever you want. I like `y` because in my keyboard layout it's close to `;`
function y() {
previous=$?
if [ $previous -eq 0 ]; then
osascript -e "display notification \"Done\" with title \"Terminal Task\"" && say "it is done";
else
osascript -e "display notification \"Failed\" with title \"Terminal Task\"" && say "it went to the trees";
fi
}
@donavon
donavon / test_runner.js
Last active January 22, 2020 23:08 — forked from joakimbeng/test_runner.js
A small and simple Javascript test runner
/**
* A Javascript test runner in 20 lines of code
* From http://joakimbeng.eu01.aws.af.cm/a-javascript-test-runner-in-20-lines/
*/
(function () {
// The test queue:
var tests = [];
// Function to add tests:
this.test = function test (name, cb) {

tracked npm

@tracked is a decorator for Preact that makes working with state values no different than properties on your component instance.

It's one 300 byte function that creates a getter/setter alias into state/setState() for a given key, with an optional initial value. The "magic" here is simply that it works as a property decorator rather than a function, so it appears to integrate directly into the language.

tracked has no dependencies and works with any component implementation that uses this.state and this.setState().

Installation