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Stop handler.postDelayed()

...use: handler.removeCallbacksAndMessages(null); Docs public final void removeCallbacksAndMessages (Object token) Added in API level 1 Remove any pending posts of callbacks and sent messages whose obj is token. If token is null, all callbacks and messages will be removed. Or you cou...
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Find first element by predicate

...t .findFirst returns. One of the uses of Optional is to help developers avoid having to deal with nulls. e.g. instead of checking myObject != null, you can check myOptional.isPresent(), or use other parts of the Optional interface. Did that make it clearer? – AMTerp ...
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How to center buttons in Twitter Bootstrap 3?

...ve already tried applying the center-block class to the button but that didn't work. How should I fix this? 14 Answers ...
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When should I use h:outputLink instead of h:commandLink?

... renders a HTML <a> element with an onclick script which submits a (hidden) POST form and can invoke a managed bean action method. It's also required to be placed inside a <h:form>. <h:form> <h:commandLink value="link text" action="destination" /> </h:form> The ?fa...
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REST / SOAP endpoints for a WCF service

...TestService { [OperationContract] [WebGet(UriTemplate = "accounts/{id}")] Account[] GetAccount(string id); } POX behavior for REST Plain Old XML <behavior name="poxBehavior"> <webHttp/> </behavior> Endpoints <services> <service name="TestService"> ...
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Quickest way to compare two generic lists for differences

...m wondering for two huge lists, is it useful to sort before compare? or inside Except extension method, the list passed in is sorted already. – Larry Oct 10 '12 at 8:59 ...
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ASP.NET Identity DbContext confusion

A default MVC 5 App comes with this piece of code in IdentityModels.cs - this piece of code is for all the ASP.NET Identity operations for the default templates: ...
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How can I get name of element with jQuery?

... You should use attr('name') like this $('#yourid').attr('name') you should use an id selector, if you use a class selector you encounter problems because a collection is returned share ...
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How can I create an array with key value pairs?

...racket syntax: if (!empty($row["title"])) { $catList[$row["datasource_id"]] = $row["title"]; } $row["datasource_id"] is the key for where the value of $row["title"] is stored in. share | impr...
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What does “hashable” mean in Python?

...shable by default; they all compare unequal, and their hash value is their id(). share | improve this answer | follow | ...