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simulate background-size:cover on or

...r a while, but I came across a great solution that doesn't use any script, and can achieve a perfect cover simulation on video with 5 lines of CSS (9 if you count selectors and brackets). This has 0 edge-cases in which it doesn't work perfectly, short of CSS3-compatibility. You can see an example h...
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“Keep Me Logged In” - the best approach

... uses sessions to store information about the user once they've logged in, and to maintain that information as they travel from page to page within the app. In this specific application, I'm storing the user_id , first_name and last_name of the person. ...
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What is the _snowman param in Ruby on Rails 3 forms for?

... parameter was added to forms in order to force Internet Explorer (5, 6, 7 and 8) to encode its parameters as unicode. Specifically, this bug can be triggered if the user switches the browser's encoding to Latin-1. To understand why a user would decide to do something seemingly so crazy, check out ...
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What's the safest way to iterate through the keys of a Perl hash?

...ng each may in some way have unintended side effects. So, is that true, and is one of the two following methods best, or is there a better way? ...
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Is there a method that calculates a factorial in Java?

...ommon example program for beginners. But wouldn't it be useful to have a standard implementation for this one to reuse? I could use such a method with standard types (Eg. int, long...) and with BigInteger / BigDecimal, too. ...
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How to detect idle time in JavaScript elegantly?

... Here is a simple script using JQuery that handles mousemove and keypress events. If the time expires, the page reload. <script type="text/javascript"> var idleTime = 0; $(document).ready(function () { //Increment the idle time counter every minute. var ...
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Visual Studio appears to randomly adopt American keyboard layout

...s really causing me hassle today. Suddenly without warning '@' (at symbol) and '"' (double quote) are trading places on my keyboard but ONLY in Visual Studio 2008! ...
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Easiest way to flip a boolean value?

... it can be helpful to have a TOGGLE(a) macro. This prevents some mistakes and makes it all more readable on narrow screens. – OJW Oct 1 '10 at 12:17  |  ...
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Add UIPickerView & a Button in Action sheet - How?

...ext errors in iOS 7. I just spent a few hours working through this problem and ultimately decided to take a different approach. I replaced the call to show the action sheet with a modal view controller containing a simple tableview. There are many ways to accomplish this. Here's one way that I jus...
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What is the difference between MOV and LEA?

...urpose of LEA is to allow one to perform a non-trivial address calculation and store the result [for later usage] LEA ax, [BP+SI+5] ; Compute address of value MOV ax, [BP+SI+5] ; Load value at that address Where there are just constants involved, MOV (through the assembler's constant calculation...