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ios = /iphone|ipod|ipad/.test( userAgent );

The “vanilla” store implementation you get by calling createStore only supports plain object actions and hands them immediately to the reducer. However, if you wrap createStore with applyMiddleware, the middleware can interpret actions differently, and provide support for dispatching async actions. Async actions are usually asynchronous primitives like Promises, Observables, or thunks.

element = document.querySelector(selectors); selectors muss ein gültiger CSS-Selektor-String sein

window.parent.postMessage("Hello From IFrame", "http://example.com");

return { [this.attr('name')]: this.attr('value'), };

import memoize from "memoize-one"; ... filter = memoize( (list, filterText) => list.filter(item => item.text.includes(filterText)) );

Avoid sharing script objects or script arrays across threads (this includes global.) Sharing script objects is asking for trouble. Share only primitive data types, or Java objects.

window.location = "http://www.yoururl.com";