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Preloading CSS Images

...the page. For the "trick" to work, we shall use the content property which comfortably allows setting multiple URLs to be loaded, but as shown, the ::after pseudo element is kept hidden so the images won't be rendered: body::after{ position:absolute; width:0; height:0; overflow:hidden; z-index:-1...
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How to get a password from a shell script without echoing

... needs access to a password protected system. The system is accessed via a command-line program that accepts the user password as an argument. ...
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How do I hide a menu item in the actionbar?

...m is not a regular view that's part of your layout. Its something special, completely different. Your code returns null for item and that's causing the crash. What you need instead is to do: MenuItem item = menu.findItem(R.id.addAction); Here is the sequence in which you should call: first call i...
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JSON formatter in C#?

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What 'additional configuration' is necessary to reference a .NET 2.0 mixed mode assembly in a .NET 4

...re requirement is that I can use the System.Data.SQLite framework which is compiled against 2.X. I see mention of this being possible such as the accepted answer here but I don't see how to actually achieve this. ...
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How to crop an image in OpenCV using Python

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HTML Form: Select-Option vs Datalist-Option

... Also, it has mostly [partial support]((caniuse.com/#feat=datalist) in the other browsers, with bugs such as long datalists becoming unscrollable, etc. – Govind Rai Sep 26 '16 at 0:34 ...
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How to DROP multiple columns with a single ALTER TABLE statement in SQL Server?

I would like to write a single SQL command to drop multiple columns from a single table in one ALTER TABLE statement. 11 ...
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How to determine if a string is a number with C++?

...har c) { return !std::isdigit(c); }) == s.end(); } As pointed out in the comments below, this only works for positive integers. If you need to detect negative integers or fractions, you should go with a more robust library-based solution. Although, adding support for negative integers is pretty ...
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Convert a string representation of a hex dump to a byte array using Java?

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