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How do JavaScript closures work?
...clared outside the function, regardless of when and where the function is called.
If a function was called by a function, which in turn was called by another function, then a chain of references to outer lexical environments is created. This chain is called the scope chain.
In the following code, in...
Including Google Web Fonts link or import?
... loaded. Most browsers will defer painting the content to the screen until all of the CSS is downloaded and applied - this avoids the "flash of unstyled content" problem. The downside is.. you may have an extra pause and delay until the content is visible. With the JS loader, you can define how and ...
How to deal with SettingWithCopyWarning in Pandas?
...
The SettingWithCopyWarning was created to flag potentially confusing "chained" assignments, such as the following, which does not always work as expected, particularly when the first selection returns a copy. [see GH5390 and GH5597 for background discussion.]
df[df['A'] > 2...
In Angular, I need to search objects in an array
...ound';
}
}
Angular documentation is here http://docs.angularjs.org/api/ng.filter:filter
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Rename all files in directory from $filename_h to $filename_half?
...
Just use bash, no need to call external commands.
for file in *_h.png
do
mv "$file" "${file/_h.png/_half.png}"
done
Do not add #!/bin/sh
For those that need that one-liner:
for file in *.png; do mv "$file" "${file/_h.png/_half.png}"; done
...
How to assign colors to categorical variables in ggplot2 that have stable mapping?
...maintain consistent color schemes across multiple data frames that are not all obtained by subsetting a single large data frame. Managing the factors levels in multiple data frames can become tedious if they are being pulled from separate files and not all factor levels appear in each file.
One way...
How does mockito when() invocation work?
...ou mock a class using the mock method of the Mockito class, this is essentially what happens:
Mockito.mock delegates to org.mockito.internal.MockitoCore.mock, passing the default mock settings as a parameter.
MockitoCore.mock delegates to org.mockito.internal.util.MockUtil.createMock
The MockUtil ...
String concatenation vs. string substitution in Python
...catenation is (significantly) faster according to my machine. But stylistically, I'm willing to pay the price of substitution if performance is not critical. Well, and if I need formatting, there's no need to even ask the question... there's no option but to use interpolation/templating.
>>&g...
Python Requests package: Handling xml response
...ython comes with built-in XML parsers. I recommend you use the ElementTree API:
import requests
from xml.etree import ElementTree
response = requests.get(url)
tree = ElementTree.fromstring(response.content)
or, if the response is particularly large, use an incremental approach:
response = requ...
What's the difference between findAndModify and update in MongoDB?
...you will get back a different item than what you updated.
Doing it "atomically" means you are guaranteed that you are getting back the exact same item you are updating - i.e. no other operation can happen in between.
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