Debounce a function when you want it to execute only once after a defined interval of time. If the event occurs multiple times within the interval, the interval is reset each time.
Example A user is typing into an input field and you want to execute a function, such as a call to the server, only when the user stops typing for a certain interval, such as 500ms.
| module.exports = function (string) { | |
| return btoa(string); | |
| }; |
Note: if you want to skip history behind this, and just looking for final result see: rx-react-container
When I just started using RxJS with React, I was subscribing to observables in componentDidMount and disposing subscriptions at componentWillUnmount.
But, soon I realised that it is not fun to do all that subscriptions(that are just updating property in component state) manually, and written mixin for this...
Later I have rewritten it as "high order component" and added possibility to pass also obsarvers that will receive events from component.
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:
-
Are you using
{...this.props}orcloneElement(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. -
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).
-
React does not yet reco
(by @andrestaltz)
If you prefer to watch video tutorials with live-coding, then check out this series I recorded with the same contents as in this article: Egghead.io - Introduction to Reactive Programming.
| from django.core.handlers.base import BaseHandler | |
| from django.test.client import RequestFactory | |
| class RequestMock(RequestFactory): | |
| def request(self, **request): | |
| "Construct a generic request object." | |
| request = RequestFactory.request(self, **request) | |
| handler = BaseHandler() | |
| handler.load_middleware() | |
| for middleware_method in handler._request_middleware: |