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Unable to create Android Virtual Device
... virtual device)
In your case only ARM system image exsits (Android 4.2). If you were running an older version, Intel has provided System Images (Intel x86 ATOM). You can check on the internet to see the comparison in performance between both.
In my case (see image below) I haven't installed a Sys...
Docker how to change repository name or rename image?
...o you can have as many of them associated with the same image as you like. If you don't like the old name you can remove it after you've retagged it:
docker rmi server
That will just remove the alias/tag. Since d583c3ac45fd has other names, the actual image won't be deleted.
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String length in bytes in JavaScript
...For historical reference or where TextEncoder APIs are still unavailable.
If you know the character encoding, you can calculate it yourself though.
encodeURIComponent assumes UTF-8 as the character encoding, so if you need that encoding, you can do,
function lengthInUtf8Bytes(str) {
// Matches ...
Understanding REST: Verbs, error codes, and authentication
...T: Update the addressed member of the collection or create it with the specified ID.
POST: Treats the addressed member as a collection in its own right and creates a new subordinate of it.
DELETE: Delete the addressed member of the collection.
Point 2: I need more verbs
In general, when you thi...
jQuery - checkbox enable/disable
I have a bunch of checkboxes like this. If the "Check Me" checkbox is checked, all the other 3 checkboxes should be enabled, else they should be disabled. How can I do this using jQuery?
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Is there a performance difference between CTE , Sub-Query, Temporary Table or Table Variable?
In this excellent SO question , differences between CTE and sub-queries were discussed.
4 Answers
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How to cherry-pick multiple commits
...mit A to commit B (where A is older than B), run:
git cherry-pick A^..B
If you want to ignore A itself, run:
git cherry-pick A..B
(Credit goes to damian, J. B. Rainsberger and sschaef in the comments)
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Restore the state of std::cout after manipulating it
...ppet:
void printHex(std::ostream& x) {
boost::io::ios_flags_saver ifs(x);
x << std::hex << 123;
}
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SQL - find records from one table which don't exist in another
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There's several different ways of doing this, with varying efficiency, depending on how good your query optimiser is, and the relative size of your two tables:
This is the shortest statement, and may be quickest if your phone book is very sh...
What does “./” (dot slash) refer to in terms of an HTML file path location?
...css/style.css ./ is the css folder.
This is important to remember because if you move CSS from /index.htm to /css/style.css the path will change.
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