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Preloading CSS Images
...-index:-1; // hide images
content:url(img1.png) url(img2.png) url(img3.gif) url(img4.jpg); // load images
}
Demo
it's better to use a sprite image to reduce http requests...(if there are many relatively small sized images) and make sure the images are hosted where HTTP2 is used.
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How to Find And Replace Text In A File With C#
...write to the file while you're reading from it. Unless you write out to a different file, then replace it with a rename afterwards.. either way, the new file has to be stored somewhere else while you're building it, whether it's in memory or on disk.
– Flynn1179
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What's the difference between streams and datagrams in network programming?
What's the difference between sockets (stream) vs sockets (datagrams)? Why use one over the other?
3 Answers
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Postgres NOT in array
...n operator, which must yield a Boolean result. The result of ALL is "true" if all comparisons yield true (including the case where the array has zero elements). The result is "false" if any false result is found.
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Array versus linked-list
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It's easier to store data of different sizes in a linked list. An array assumes every element is exactly the same size.
As you mentioned, it's easier for a linked list to grow organically. An array's size needs to be known ahead of time, or re-created wh...
How to Customize the time format for Python logging?
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Note that if you're using the dictConfig method of configuring logging (e.g. if you're using Django), you can set this using the 'datefmt' dict key for a formatter. See: Django Logging Configuration , logging module: Dictionary Schema ...
Creating a simple XML file using python
What are my options if I want to create a simple XML file in python? (library wise)
6 Answers
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How to get error message when ifstream open fails
...rrno value.
Thus, you can have more information about what happens when a ifstream open fails by using something like :
cerr << "Error: " << strerror(errno);
However, since every system call updates the global errno value, you may have issues in a multithreaded application, if anot...
Given an RGB value, how do I create a tint (or shade)?
...s and other shading) should be done in linear RGB. However, RGB colors specified in documents or encoded in images and video are not likely to be in linear RGB, in which case a so-called inverse transfer function needs to be applied to each of the RGB color's components. This function varies with th...
How do I make HttpURLConnection use a proxy?
If I do this...
7 Answers
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