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Clear icon inside input text

.... jQ will add the class x (if input has value) showing the clear icon. Now all we need is to target with jQ the inputs with class x and detect on mousemove if the mouse is inside that 18px "x" area; if inside, add the class onX. Clicking the onX class removes all classes, resets the input value and ...
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How to convert currentTimeMillis to a date in Java?

... Calendar objects are generally considered quite large, so should be avoided when possible. A Date object is going to be better assuming it has the functionality you need. "Date date=new Date(millis);" provided in the other answer by user AVD is going ...
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How to delete an SMS from the inbox in Android programmatically?

... onReceive() method, before performing anything with your message, simply call abortBroadcast(); EDIT: As of KitKat, this doesn't work anymore apparently. EDIT2: More info on how to do it on KitKat here: Delete SMS from android on 4.4.4 (Affected rows = 0(Zero), after deleted) ...
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Rails check if yield :area is defined in content_for

... not really necessary to create a helper method: <% if @content_for_sidebar %> <div id="sidebar"> <%= yield :sidebar %> </div> <% end %> then of course in your view: <% content_for :sideb...
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How to Select Every Row Where Column Value is NOT Distinct

I need to run a select statement that returns all rows where the value of a column is not distinct (e.g. EmailAddress). 7 A...
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How to find what code is run by a button or element in Chrome using Developer Tools

...ess the F11 key (Step In) until desired source code appears Source code finally reached In the jsFiddle sample provided above, I had to press F11 108 times before reaching the desired event handler/function Your mileage may vary, depending on the version of jQuery (or framework library) used to bi...
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How to identify if the DLL is Debug or Release build (in .NET) [duplicate]

...s to check the compiled assemblies itself. There is this very useful tool called '.NET Assembly Information' found here by Rotem Bloom. After you install this, it associates itself with .dll files to open with itself. After installing you can just double-click on the Assembly to open and it will giv...
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Why would introducing useless MOV instructions speed up a tight loop in x86_64 assembly?

... in the branch prediction table moving the branch eliminated the alias and allowed the branch to be predicted correctly Your Core2 doesn't keep a separate history record for each conditional jump. Instead it keeps a shared history of all conditional jumps. One disadvantage of global branch predic...
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Which is more efficient, a for-each loop, or an iterator?

... If you are just wandering over the collection to read all of the values, then there is no difference between using an iterator or the new for loop syntax, as the new syntax just uses the iterator underwater. If however, you mean by loop the old "c-style" loop: for(int i=0; i&l...
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Getting a better understanding of callback functions in JavaScript

I understand passing in a function to another function as a callback and having it execute, but I'm not understanding the best implementation to do that. I'm looking for a very basic example, like this: ...