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How to loop through a plain JavaScript object with the objects as members?
...for (var key in validation_messages) {
// skip loop if the property is from prototype
if (!validation_messages.hasOwnProperty(key)) continue;
var obj = validation_messages[key];
for (var prop in obj) {
// skip loop if the property is from prototype
if (!obj.hasOwnPro...
How to do associative array/hashing in JavaScript
...two"] = "Second";
associativeArray["three"] = "Third";
If you are coming from an object-oriented language you should check this article.
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How to get a list of repositories apt-get is checking? [closed]
...:
apt-add-repository << current.repos.list
Regarding getting repo from a package (installed or available), this will do the trick
apt-cache policy package_name |grep -m1 http| awk '{ print $2 " " $3 }'
However, that will show you the repository of the latest version available of that pac...
Why does python use 'else' after for and while loops?
...p has values unless a break statement is explicity run as in this example. From the docs above: "The else clause has another perceived problem: if there is no break in the loop, the else clause is functionally redundant.". e.g. for x in [1, 2, 3]:\n print x\n else:\n print 'this executes due to no b...
How to get the size of a string in Python?
...ed to store str object, you can use sys.getsizeof() function
>>> from sys import getsizeof
>>> print(getsizeof('please anwser my question'))
50
Python 2:
It gets complicated for Python 2.
A. The len() function in Python 2 returns count of bytes allocated to store encoded char...
Proper way to initialize a C# dictionary with values?
... }
}
Can you try to reproduce it in a simple Console application and go from there? It seems likely that you're targeting .NET 2.0 (which doesn't support it) or client profile framework, rather than a version of .NET that supports initialization syntax.
...
项目管理实践【五】自动编译和发布网站【Using Visual Studio with Source ...
...d>anonymous</FtpPassword>
<SmtpServerName>smtp.163.com</SmtpServerName>
<FromAddress>ttzhang@163.com</FromAddress>
<ToAddress>zttc@163.com</ToAddress>
<MailPassword>testmail</MailPassword>
</PropertyGroup>
<PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
<DebugSy...
How to convert a SVG to a PNG with ImageMagick?
...
I haven't been able to get good results from ImageMagick in this instance, but Inkscape does a nice job of it on Linux and Windows:
inkscape -z -w 1024 -h 1024 input.svg -e output.png
Edit (May 2020): Inkscape 1.0 users, please note that the command line arguments...
How do I finish the merge after resolving my merge conflicts?
... your working to the state of the last commit. This will lose your changes from the working tree so if you had local modifications before the merge they will be gone after this—which is why it’s advisable to not start a merge when you have local modifications. :)
...
Hide Utility Class Constructor : Utility classes should not have a public or default constructor
...//not called
}
}
This prevents the default parameter-less constructor from being used elsewhere in your code. Additionally, you can make the class final, so that it can't be extended in subclasses, which is a best practice for utility classes. Since you declared only a private constructor, othe...