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Find integer index of rows with NaN in pandas dataframe
...etter than [i for i, k in enumerate(mask) if k] .)
– Winand
Feb 4 '16 at 6:51
2
You could probabl...
When to use AtomicReference in Java?
...rue) reference assignment (i.e. =) is itself atomic (updating primitive 64-bit types like long or double may not be atomic; but updating a reference is always atomic, even if it's 64 bit) without explicitly using an Atomic*.
See the Java Language Specification 3ed, Section 17.7.
...
How To Accept a File POST
...multipart-mime#multipartmime, although I think the article makes it seem a bit more complicated than it really is.
Basically,
public Task<HttpResponseMessage> PostFile()
{
HttpRequestMessage request = this.Request;
if (!request.Content.IsMimeMultipartContent())
{
th...
Which MySQL data type to use for storing boolean values
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For MySQL 5.0.3 and higher, you can use BIT. The manual says:
As of MySQL 5.0.3, the BIT data type is used to store bit-field
values. A type of BIT(M) enables storage of M-bit values. M can range
from 1 to 64.
Otherwise, according to the MySQL manual you can use ...
Proper way to handle multiple forms on one page in Django
...then if the first form has any validation errors, the second automatically wins and the first form is reset, although we still need to display the errors from the first form. Just thought you should know
– Enduriel
May 3 '13 at 16:12
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How to read a CSV file into a .NET Datatable
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We always used to use the Jet.OLEDB driver, until we started going to 64 bit applications. Microsoft has not and will not release a 64 bit Jet driver. Here's a simple solution we came up with that uses File.ReadAllLines and String.Split to read and parse the CSV file and manually load a DataTable....
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...项目管理工作。可以通过Email: xu_min@sina.com与她联系。
WinXP,Win7,Win8,Win105.5MB
Making a property deserialize but not serialize with json.net
...rialization.Json & Newtonsoft.Json) and it worked for me like the following:
flag all your class and sub-classes as "DataContract".
flag all the properties of your class and sub-classes as "DataMember".
flag all the properties of your class and sub-classes as "JsonProperty" except those you ...
Python Create unix timestamp five minutes in the future
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It's also more portable than %s flag to strftime (which doesn't work on Windows).
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What is the correct way to start a mongod service on linux / OS X?
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I did a bit of looking around on the Mac side. You may want to use the installer here as it looks like it does all the setup for you to automatically launch on Mac OS. The only downside is it looks like it's using a pretty old mongo...