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Does PNG contain EXIF data like JPG?
...ded an EXIF chunk. It remains to be seen if encoders-decoders begin to support it.
Original: PNG does not embed EXIF info. It allows, however, to embed metadata "chunks" inside the image. Some of the standardized chunks correspond to a few EXIF attributes (physical dimensions, timestamp). And it's ...
Should I check in node_modules to git when creating a node.js app on Heroku?
I followed the basic getting started instructions for node.js on Heroku here:
12 Answers
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vim deleting backward tricks
...urrent backward to beginning of line
dw deletes current to end of current word (including trailing space)
db deletes current to beginning of current word
Read this to learn all the things you can combine with the 'd' command.
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How do I get the row count of a pandas DataFrame?
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You can use the .shape property or just len(DataFrame.index). However, there are notable performance differences ( len(DataFrame.index) is fastest).
Code to reproduce the plot:
import numpy as np
import pandas as pd
import perfplot
perfplot.save(
"o...
Disable hover effects on mobile browsers
...s of the screen to light up with :hover effects (different background color, etc.) With a tablet, there's no mouse, so I don't want any hover effects.
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How to access environment variable values?
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Environment variables are accessed through os.environ
import os
print(os.environ['HOME'])
Or you can see a list of all the environment variables using:
os.environ
As sometimes you might need to see a complete list!
# using get will return `None` if a key is not present rather...
How can a Metro app in Windows 8 communicate with a backend desktop app on the same machine?
...on where you have the UI frontend built using the new Metro style of apps for windows 8, and would like it to communicate with a .NET application running on the desktop on the same local machine (e.g. a windows service app).
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How can I fix WebStorm warning “Unresolved function or method” for “require” (Firefox Add-on SDK)
I'm using WebStorm 7 for Firefox Add-on SDK development.
13 Answers
13
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Can I use git diff on untracked files?
... possible to ask git diff to include untracked files in its diff output, or is my best bet to use git add on the newly created files and the existing files I have edited, then use:
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How to list variables declared in script in bash?
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set will output the variables, unfortunately it will also output the functions defines as well.
Luckily POSIX mode only outputs the variables:
( set -o posix ; set ) | less
Piping to less, or redirect to where you want the options.
So to get the variabl...