lscache This is a simple library that emulates memcache functions using HTML5 localStorage, so that you can cache data on the client and associate an expiration time with each piece of data. If the localStorage limit (~5MB) is exceeded, it tries to create space by removing the items that are closest to expiring anyway. If localStorage is not available at all in the browser, the library degrades by
In ECMAScript 5, you have a few options for ensuring that a required parameter has been provided, all of which are somewhat brittle and inelegant: function foo(mustBeProvided) { if (arguments.length < 1) throw new Error(...) if (! (0 in arguments)) ... if (mustBeProvided === undefined) ... } In ECMAScript 6, you can (ab)use default parameter values to achieve more concise code (credit: idea by All
Update: These context menus display even when JavaScript is disabled; so best practice will be to create these menu structures via JavaScript. Mass innerHTML injection can be used or basic DOM node injection. One of the hidden gems within the HTML5 spec is context menus. The HTML5 context menu spec allows developers to create custom context menus for given blocks within simple menu and menuitem el
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