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ElasticSearch, Sphinx, Lucene, Solr, Xapian. Which fits for which usage? [closed]
...ds rather than having a huge SQL query.
I saw elasticsearch recently and played with whoosh (a Python implementation of a search engine).
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CSS hexadecimal RGBA?
...re support this notation now, Edge still missing but will probably follow (https://caniuse.com/#feat=css-rrggbbaa).
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C++ equivalent of java's instanceof
What is the preferred method to achieve the C++ equivalent of java's instanceof ?
6 Answers
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Check whether a variable is a string in Ruby
...eUploader: {
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Can CSS detect the number of children an element has?
...; Lea Verou (refined).
Don't you just love CSS3? ????
CodePen Example:
https://codepen.io/mattlubner-the-decoder/pen/ExaQZQR
Sources:
http://andr3.net/blog/post/142 (André Luís)
http://lea.verou.me/2011/01/styling-children-based-on-their-number-with-css3/ (Lea Verou)
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Get key by value in dictionary
I made a function which will look up ages in a Dictionary and show the matching name:
34 Answers
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Fetch frame count with ffmpeg
...ne know how to fetch the number of total frames from a video file using ffmpeg? The render output of ffmpeg shows the current frame and I need the frame count to calculate the progress in percent.
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What does it mean when a CSS rule is grayed out in Chrome's element inspector?
I'm inspecting an h2 element on a web page using Google Chrome's element inspector and some of the CSS rules--which appear to be applied--are grayed out. It seems that a strike-through indicates that a rule was overridden, but what does it mean when a style is grayed out?
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Using ECMAScript 6
... that is compatible with all existing (modern) browsers.
For example, see https://github.com/google/traceur-compiler. As of writing, it supports all of the new syntax features of ES6. Together with the flag mentioned at the top of this answer, you will get very close to the desired result.
If you ...
Role/Purpose of ContextLoaderListener in Spring?
I am learning Spring Framework which is being used in my project. I found the ContextLoaderListener entry in my web.xml file. But could not figure out how exactly it helps a developer?
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