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Converting a UNIX Timestamp to Formatted Date String
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@KasparL.Palgi You would have to divide the timestamp by 1000 to get proper year, as this timestamp is stored in milliseconds.
– Wadih M.
Jul 1 at 9:43
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Generate a random number in the range 1 - 10
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If by numbers between 1 and 10 you mean any float that is >= 1 and < 10, then it's easy:
select random() * 9 + 1
This can be easily tested with:
# select min(i), max(i) from (
select random() * 9 + 1 as i from gene...
IllegalArgumentException or NullPointerException for a null parameter? [closed]
...ts the cases where NPE is appropriate. Notice that all of them are thrown by the runtime when null is used inappropriately. In contrast, the IAE JavaDoc couldn't be more clear: "Thrown to indicate that a method has been passed an illegal or inappropriate argument." Yup, that's you!
Second, when ...
What does tree-ish mean in Git?
...h>, e.g. HEAD:README, :README, master:./README
A suffix : followed by a path names the blob or tree at the given path in
the tree-ish object named by the part before the colon.
So, in other words, master:foo is the correct syntax, not master/foo.
Other "Tree-ish" (Plus Commit-ish)
Here...
Express-js wildcard routing to cover everything under and including a path
...answered May 28 '11 at 12:35
serbyserby
3,59022 gold badges2121 silver badges2424 bronze badges
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Json.net serialize/deserialize derived types?
...The long way is to write custom JsonConverters to handle (de)serialization by manually checking and setting the type property.
A simpler way is to use JsonSubTypes, which handles all the boilerplate via attributes:
[JsonConverter(typeof(JsonSubtypes), "Sound")]
[JsonSubtypes.KnownSubType(typeof(Do...
Get current batchfile directory
...h file location.
You can get the name of the batch script itself as typed by the user with %0 (e.g. scripts\mybatch.bat). Parameter extensions can be applied to this so %~dp0 will return the Drive and Path to the batch script (e.g. W:\scripts\) and %~f0 will return the full pathname (e.g. W:\script...
How to split data into training/testing sets using sample function
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It can be easily done by:
set.seed(101) # Set Seed so that same sample can be reproduced in future also
# Now Selecting 75% of data as sample from total 'n' rows of the data
sample <- sample.int(n = nrow(data), size = floor(.75*nrow(data)), ...
Can JavaScript connect with MySQL?
... the php code retrieves from MySQL - and this http interface can be called by JavaScript code running anywhere, mainly a brwoser. As of today, also saying JavaScript is client side isn't current anymore - check Node.js for example.
– Henning
Sep 2 '12 at 15:36...
What is the meaning of erb?
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erb stands for "Embedded RuBy". A .html.erb or .erb.html file is HTML with Ruby code embedded in; Rails will evaluate the Ruby to add content to the file dynamically, and will output a "pure" HTML file for rendering.
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