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Storing Data in MySQL as JSON
...er rules that MySQL follows when comparing JSON values, see Comparison and Ordering of JSON Values.
MySQL 5.7.8 also introduces a number of functions for working with JSON values. These functions include those listed here:
Functions that create JSON values: JSON_ARRAY(), JSON_MERGE(), a...
Working with select using AngularJS's ng-options
...t; element. In that case you can perform certain string concatenations, in order to have more complex option labels.
Examples:
ng-options="item.ID as item.Title + ' - ' + item.ID for item in items" gives you labels like Title - ID
ng-options="item.ID as item.Title + ' (' + item.Title.length + ')'...
Technically, why are processes in Erlang more efficient than OS threads?
...y designed to be optimal in the case where there are fewer of them (of the order of the number of CPU cores) and where they are doing more significant amounts of processing each.
– Donal Fellows
May 12 '10 at 12:14
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Principles for Modeling CouchDB Documents
...ll the comments that reference that parent post ID, sorted in some logical ordering. Maybe you even pass in something like [postID,byUsername] as the key to the 'comments' view to indicate the parent post and how you want the results sorted or something along those lines.
MongoDB handles documents ...
Difference between android-support-v7-appcompat and android-support-v4
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Highly active question. Earn 10 reputation in order to answer this question. The reputation requirement helps protect this question from spam and non-answer activity.
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Why are quaternions used for rotations?
...: Normalization! Ghram-Shmit is asymmetrical, which does not give a higher order accurate answer when doing differential equations. More sophisticated methods are very complex and expensive.
Axis (angle = length of axis)
Minor advantage: Small.
Moderate disadvantage: Multiplication and applying to ...
Generating a PNG with matplotlib when DISPLAY is undefined
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This works great, without the restrictions on the order used to import matplotlib and other libraries.
– PabTorre
Sep 5 '17 at 15:40
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How do you upload images to a gist?
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I was looking for an answer to this same question too, in my case in order to be able to upload PDF files. I had trouble with gist-img (mentioned in another answer to this question). I searched some more and discovered gistup, which worked perfectly, the first time I tried it. It uses node and...
Xcode 4 says “finished running ” on the targeted device — Nothing happens
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Bingo: I had to do the two steps described in order to run properly on my old iPhone 3G. Thanks MattyG!
– Ariel Malka
Oct 17 '11 at 10:27
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How to get the filename without the extension in Java?
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Here is the consolidated list order by my preference.
Using apache commons
import org.apache.commons.io.FilenameUtils;
String fileNameWithoutExt = FilenameUtils.getBaseName(fileName);
OR
String fileNameWithOutExt = Filename...