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Calculate difference between two datetimes in MySQL
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MongoDB atomic “findOrCreate”: findOne, insert if nonexistent, but do not update
... specify updates which should only happen when inserting documents.
This, combined with the upsert option, means you can use findAndModify to achieve an atomic findOrCreate-like operation.
db.collection.findAndModify({
query: { _id: "some potentially existing id" },
update: {
$setOnInsert:...
Node.js and CPU intensive requests
...the work, and write the response back.
something like this https://github.com/resque/resque
Here is an article from github about why they built it http://github.com/blog/542-introducing-resque
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ASP.NET MVC passing an ID in an ActionLink to the controller
...ok "HtmlAttributes" as the fourth parameter. So adding ", null" forced the compiler to use your inline object as the route parameters.
– Timothy Khouri
Nov 25 '08 at 11:21
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Get “Value” property in IGrouping
... So basically if we are following the essence of the question value is comparable to ToList() only there is more of an overhead there to convert it to a list as opposed to just pulling out a value
– Coops
Dec 17 '14 at 15:25
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How can I add items to an empty set in python
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Change size of axes title and labels in ggplot2
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54
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How to clone a case class instance and change just one field in Scala?
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case classcomes with a copy method that is dedicated exactly to this usage:
val newPersona = existingPersona.copy(sentMessages =
existingPersona.sentMessages + newMessage)
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Is there a recommended format for multi-line imports?
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Personally I go with parentheses when importing more than one component and sort them alphabetically. Like so:
from Tkinter import (
Button,
Canvas,
DISABLED,
END,
Entry,
Frame,
LEFT,
NORMAL,
RIDGE,
Text,
Tk,
)
This has the added advantage ...
Remove file from the repository but keep it locally
... in my remote repository. I'd like to delete it, but keep the folder in my computer
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