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How to get the first column of a pandas DataFrame as a Series?
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From v0.11+, ... use df.iloc.
In [7]: df.iloc[:,0]
Out[7]:
0 1
1 2
2 3
3 4
Name: x, dtype: int64
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Dependency injection through constructors or property setters?
...there is a dependency on the persistence layer.
Also, to prevent yourself from having to alter every use of the old constructor, simply apply constructor chaining as a temporary bridge between the old and new constructor.
public class ClassExample
{
public ClassExample(IDependencyOne dependenc...
Ignore whitespace in HTML [duplicate]
...ly useful feature (think of inline blocks in general) yet. :-(
What I did from time to time, although it's ugly as the night is dark, is to use comments:
<p><!--
--><img src="." alt="" /><!--
--><img src="." alt="" /><!--
--><img src="." alt="" /><...
Calculate MD5 checksum for a file
I'm using iTextSharp to read the text from a PDF file. However, there are times I cannot extract text, because the PDF file is only containing images. I download the same PDF files everyday, and I want to see if the PDF has been modified. If the text and modification date cannot be obtained, is a ...
Accessing JPEG EXIF rotation data in JavaScript on the client side
...oadend = function() {
// get EXIF data
var exif = EXIF.readFromBinaryFile(new BinaryFile(this.result));
// alert a value
alert(exif.Make);
};
fr.readAsBinaryString(file); // read the file
});
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Are there any naming convention guidelines for REST APIs? [closed]
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Just to note, there's nothing stopping you from using REST for non-hierarchical resources. The actual URI naming conventions you use are immaterial, just use whatever you think looks nice and is easy for you to parse on the server. The client shouldn't know anything a...
How do I copy an object in Java?
...elf does not implement Cloneable.
copyProperties will Copy property values from the origin bean to the destination bean for all cases where the property names are the same.
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Initialising mock objects - MockIto
...ner or the MockitoAnnotations.initMocks are strictly equivalent solutions. From the javadoc of the MockitoJUnitRunner :
JUnit 4.5 runner initializes mocks annotated with Mock, so that explicit usage of MockitoAnnotations.initMocks(Object) is not necessary. Mocks are initialized before each test met...
Stripping out non-numeric characters in string
... Nice answer. Might just want to consider renaming the function from 'GetNumbers' to 'GetDigits' as well...to make its intention clear.
– JTech
Aug 24 '15 at 4:09
2
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How to escape JSON string?
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For those using the very popular Json.Net project from Newtonsoft the task is trivial:
using Newtonsoft.Json;
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var s = JsonConvert.ToString(@"a\b");
Console.WriteLine(s);
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This code prints:
"a\\b"
That is, the resulting string value contains the quotes as well ...