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Create list of single item repeated N times
...'string'] * len(columns)
Mutable items
I've used Python for a long time now, and I have never seen a use-case where I would do the above with a mutable instance. Instead, to get, say, a mutable empty list, set, or dict, you should do something like this:
list_of_lists = [[] for _ in columns]
T...
Grant **all** privileges on database
... sure to reload all the privileges.
FLUSH PRIVILEGES;
Your changes will now be in effect.
For more information: http://dev.mysql.com/doc/refman/5.6/en/grant.html
If you are not comfortable with the command line then you can use a client like MySQL workbench, Navicat or SQLyog
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How to validate phone numbers using regex
...ve just the "number". Doing this solves 2 problems - testing the result is now easy and you can now ensure that values rendered back out for display can all be formatted consistently. The first comment on this answer about the "Complicator's Gloves" is a good read... sometimes the answer to a probl...
Biggest differences of Thrift vs Protocol Buffers?
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Now that Thrift has multiple protocols (including a TCompactProtocol), I think that the first bullet doesn't apply anymore.
– Janus Troelsen
Feb 20 '12 at 16:47
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How to write a:hover in inline CSS?
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You could do it at some point in the past. But now (according to the latest revision of the same standard, which is Candidate Recommendation) you can't
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impr...
Benefit of using Parcelable instead of serializing object
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Sorry, inventing yet another serializer sucks - now there is just yet another "Parcelable" to deal with. There are plenty to choose from, with a library (the difference is the library is vetted, tested, and uses a format that other people use): ProtocolBuffers, JSON, XML, ...
What is the MIME type for Markdown?
Does anyone know if there exists a MIME type for Markdown? I guess it is text/plain , but is there a more specific one?
4 ...
Most useful NLog configurations [closed]
...on, perhaps I'm looking through the github examples in the wrong way? Who knows.
– JARRRRG
Oct 1 '14 at 11:42
How to u...
Update R using RStudio
...ork for you, try using installed.packages()
to find the proper pathnames.]
now you can update your packages by typing update.packages() in your RStudio console, and answering 'y' to all of the prompts.
> update.packages(checkBuilt=TRUE)
class :
Version 7.3-7 installed in /Library/Frameworks/R.f...
Get all unique values in a JavaScript array (remove duplicates)
...et to store unique values. To get an array with unique values you could do now this:
var myArray = ['a', 1, 'a', 2, '1'];
let unique = [...new Set(myArray)];
console.log(unique); // unique is ['a', 1, 2, '1']
The constructor of Set takes an iterable object, like Array, and the spread ope...