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How to ignore HTML element from tabindex?

...ion. Watch out though that this is a HTML5 feature and might not work with old browsers. To be W3C HTML 4.01 standard (from 1999) compliant, tabindex would need to be positive. Sample usage below in pure HTML. <input /> <input tabindex="-1" placeholder="NoTabIndex" /> <i...
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Creating a blurring overlay view

...sic app of the new iOS, we can see an album cover behind a view that blurs it. 25 Answers ...
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Error handling in Bash

What is your favorite method to handle errors in Bash? The best example of handling errors I have found on the web was written by William Shotts, Jr at http://www.linuxcommand.org . ...
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Post data to JsonP

Is it possible to post data to JsonP? Or does all data have to be passed in the querystring as a GET request? 7 Answers ...
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How to programmatically empty browser cache?

... and I'd like to remove those when you press "log out". This would happen either via server or JavaScript. Of course, using the software on foreign/public computer is still discouraged as there are more dangers like key loggers that you just can't defeat on software level. ...
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How to center a “position: absolute” element

I'm having a problem centering an element that has the attribute position set to absolute . Does anyone know why the images are not centered? ...
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What's wrong with nullable columns in composite primary keys?

ORACLE does not permit NULL values in any of the columns that comprise a primary key. It appears that the same is true of most other "enterprise-level" systems. ...
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What is 'Pattern Matching' in functional languages?

...plaining three parts: Algebraic data types. What pattern matching is Why its awesome. Algebraic data types in a nutshell ML-like functional languages allow you define simple data types called "disjoint unions" or "algebraic data types". These data structures are simple containers, and can be re...
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How do you use bcrypt for hashing passwords in PHP?

... bcrypt is a hashing algorithm which is scalable with hardware (via a configurable number of rounds). Its slowness and multiple rounds ensures that an attacker must deploy massive funds and hardware to be able to crack your passwords. Add to that per-...
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Is it bad practice to use Reflection in Unit testing? [duplicate]

...st years I always thought that in Java, Reflection is widely used during Unit testing. Since some of the variables/methods which have to be checked are private, it is somehow necessary to read the values of them. I always thought that the Reflection API is also used for this purpose. ...