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Converting a column within pandas dataframe from int to string
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@DmitryKonovalov in python strings are immutable, so whenever you manipulating the data, you have to put the result back in to the variable.
– Sriram Arvind Lakshmanakumar
Jan 10 '19 at 10:36
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How much is the overhead of smart pointers compared to normal pointers in C++?
... the iteration is done you'll know you have to erase it. So you could gain extra memory from not using a smart_ptr...
But do you really want to do that?
A single memory leak could make your product have a point of failure in time (let's say your program leaks 4 megabytes each hour, it would take mon...
What is the explanation for these bizarre JavaScript behaviours mentioned in the 'Wat' talk for Code
...to a primitive returns its default value, which for objects with a valid toString() method is the result of calling object.toString() (§8.12.8). For arrays this is the same as calling array.join() (§15.4.4.2). Joining an empty array results in an empty string, so step #7 of the addition operator r...
What's the role of adapters in Android?
...}
void manyMoreMethods(){}
}
Lets define an adapter:
ArrayAdapter<String> adapter = new ArrayAdapter<String>(this,
android.R.layout.simple_list_item_1, android.R.id.text1, values);
First parameter: Context
Second parameter: Layout for the row
Third parameter: ID of the TextVi...
jQuery - add additional parameters on submit (NOT ajax)
... Isn't there a limit on data size? I sent some big object using JSON.stringify(obj) and this method and it appeared to be truncated.
– omikron
Feb 26 '16 at 10:21
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Spring Boot JPA - configuring auto reconnect
...o have any effect, the validationQuery parameter must be set to a non-null string.
– Rick
Jun 23 '15 at 2:53
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py2exe - generate single executable file
...converting all my images into bitmats and then all my data files into text strings.
but this caused the final exe to be very very large.
After googleing for a week i figured out how to alter py2exe script to meet my needs.
here is the patch link on sourceforge i submitted, please post comments so ...
Java system properties and environment variables
...e=value syntax. They can also be added at runtime
using System.setProperty(String key, String value) or via the various
System.getProperties().load() methods.
To get a specific system property you can use System.getProperty(String key) or System.getProperty(String key, String def).
Environment varia...
c# open file with default application and parameters
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this should be close!
public static void OpenWithDefaultProgram(string path)
{
Process fileopener = new Process();
fileopener.StartInfo.FileName = "explorer";
fileopener.StartInfo.Arguments = "\"" + path + "\"";
fileopener.Start();
}
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How to access parameters in a RESTful POST method
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Your @POST method should be accepting a JSON object instead of a string. Jersey uses JAXB to support marshaling and unmarshaling JSON objects (see the jersey docs for details). Create a class like:
@XmlRootElement
public class MyJaxBean {
@XmlElement public String param1;
@XmlEl...