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Fastest way to flatten / un-flatten nested JSON objects
...
3 ½ Years later...
For my own project I wanted to flatten JSON objects in mongoDB dot notation and came up with a simple solution:
/**
* Recursively flattens a JSON object using dot notation.
*
* NOTE: input must be an ob...
Pairs from single list
...swered Jul 2 at 20:43
Israel Gonçaves de OliveiraIsrael Gonçaves de Oliveira
11
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SSH configuration: override the default username [closed]
...xample.org and just get rid of the HostName line.
– Lèse majesté
Jun 14 '17 at 5:21
add a c...
Using C# to check if string contains a string in string array
...ed May 13 '19 at 19:39
Jean-François Fabre♦
122k1111 gold badges9797 silver badges156156 bronze badges
answered Sep 1 '15 at 12:14
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How to get the first word of a sentence in PHP?
...rd) = explode(' ', trim($myvalue), 1);
– Cédric Françoys
Oct 27 '16 at 10:33
3
@CédricFrançoy...
Recommended way to get hostname in Java
... is the name of your computer. Any attempt to determine the hostname by an IP address like this
InetAddress.getLocalHost().getHostName()
is bound to fail in some circumstances:
The IP address might not resolve into any name. Bad DNS setup, bad system setup or bad provider setup may be the reason f...
Python str vs unicode types
... control at the code-point level. For example you can do:
>>> 'àèìòù'
'\xc3\xa0\xc3\xa8\xc3\xac\xc3\xb2\xc3\xb9'
>>> print 'àèìòù'.replace('\xa8', '')
à�ìòù
What before was valid UTF-8, isn't anymore. Using a unicode string you cannot operate in such a way that t...
mongo - couldn't connect to server 127.0.0.1:27017
...o the mongod server.
This could be because the address was wrong (host or IP) or that it was not running. One thing to note is the log trace provided does not cover the "Fri Nov 9 16:44:06" of your mongo timestamp.
Can you:
Provide the command line arguments (if any) used to start your
mongod p...
How do you test a public/private DSA keypair?
...t the anatomy of the public key file.
– Salathiel Genèse
Sep 16 at 19:33
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Maximum packet size for a TCP connection
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Your 1480'ish should be 1460. The IP header and the TCP header take up 20 bytes each at least (unless optional header fields are used) and thus the max for (non-Jumbo frame) Ethernet is 1500 - 20 -20 = 1460.
– Evgeniy Berezovsky
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