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What is the point of Lookup?
...ictionary, which doesn't care that two keys correspond to the same value.
Now you want a way of looking up who a given phone number belongs to. You build a Lookup, adding all the KeyValuePairs from your Dictionary, but backwards, with the value as the key and the key as the value. You can now query...
CASCADE DELETE just once
...ked for deletion to prevent infinite loops. Please test it out and let me know how it works for you. Note: It's a little slow.
I call it like so:
select delete_cascade('public','my_table','1');
create or replace function delete_cascade(p_schema varchar, p_table varchar, p_key varchar, p_recursion v...
What is the difference between D3 and jQuery?
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it is a bad comparison now, but as of 2013 it wasn't that bad. Since then, jQuery has dropped a lot of polyfilling for older browsers (data attributes was one of them) while D3 has stopped being a monolithyc library and became instead an entrypoint...
What uses are there for “placement new”?
...he lifetime of the original char objects by re-using their storage. If you now call delete[] buf the dynamic type of the object(s) pointed to no longer matches their static type so you have undefined behaviour. It is more consistent to use operator new/operator delete to allocate raw memory inteded ...
What is the appropriate HTTP status code response for a general unsuccessful request (not an error)?
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I know this question is old, but I came up with the very same question today. If my user runs out of credits, what status code should my REST API return?
I tend to lean towards 402 Payment Required:
According to Wikipedia:
Rese...
Performant Entity Serialization: BSON vs MessagePack (vs JSON)
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MessagePack now has a BINARY data type so the argument of 1-1 de-serialization compatibility to JSON is not entirely true anymore.
– zimbatm
Aug 19 '15 at 13:14
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How to parse the AndroidManifest.xml file inside an .apk package
...n the device. (There are fields whose purpose I don't understand, if you know what they mean, tell me, I'll update the info.)
// decompressXML -- Parse the 'compressed' binary form of Android XML docs
// such as for AndroidManifest.xml in .apk files
public static int endDocTag = 0x00100101;
publi...
Positive Number to Negative Number in JavaScript?
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@PhilipRollins i * -1 will work, always. i don't know how you tried, maybe you had some typo. But... what's wrong with i = -i instead of i = i * -1 (or i *= -1) to reverse positive to negative or negative to positive?
– Diego ZoracKy
A...
iOS 8 removed “minimal-ui” viewport property, are there other “soft fullscreen” solutions?
...minimal-ui, we have come up with a different workaround, using calc() and known iOS address bar height to our advantage:
The following demo page (also available on gist, more technical details there) will prompt user to scroll, which then triggers a soft-fullscreen (hide address bar/menu), where he...
UIImagePickerController error: Snapshotting a view that has not been rendered results in an empty sn
...s deprecated in iOS 6. It is suggested that presentViewController be used now.
– Gallymon
Jan 23 '14 at 18:50
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