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“Uncaught TypeError: Illegal invocation” in Chrome
...Error: Illegal invocation. However, alert.call(window) works fine, because now alert is executed in its original scope.
If you use .call() with your object like that:
support.animationFrame.call(window, function() {});
it works fine, because requestAnimationFrame is executed in scope of window i...
How much size “Null” value takes in SQL Server
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The second link seems to be a question about Microsoft Access. I don't know the details of how Access stores NULLs but I wouldn't be surprised if it is different to SQL Server.
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How to implement the activity stream in a social network
...vity is related to. So if the activity type means "added favorite" then I know that the source_id refers to the ID of a favorite record.
The parent_id/parent_type are useful for my app - they tell me what the activity is related to. If a book was favorited, then parent_id/parent_type would tell m...
Why are arrays covariant but generics are invariant?
...th a List<Animal> - you can add any animal to it... including a cat. Now, can you logically add a cat to a litter of puppies? Absolutely not.
// Illegal code - because otherwise life would be Bad
List<Dog> dogs = new List<Dog>();
List<Animal> animals = dogs; // Awooga awooga...
Change working directory in my current shell context when running Node script
... the current working directory of the process, not the shell. As far as I know, changing the external cwd of a running process is quite complex and isn't recommended. What is your reason for wanting to do this?
– hexacyanide
Nov 6 '13 at 4:03
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How to concatenate two MP4 files using FFmpeg?
...fmpeg -i myfile2.mp4 -c copy -bsf:v h264_mp4toannexb -f mpegts temp2.ts
// now join
ffmpeg -i "concat:temp1.ts|temp2.ts" -c copy -bsf:a aac_adtstoasc output.mp4
NOTE!:
Output will be like first file ( and not a second one)
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Creating an empty Pandas DataFrame, then filling it?
...me
import pandas as pd
import numpy as np
todays_date = datetime.datetime.now().date()
index = pd.date_range(todays_date-datetime.timedelta(10), periods=10, freq='D')
columns = ['A','B', 'C']
Note: we could create an empty DataFrame (with NaNs) simply by writing:
df_ = pd.DataFrame(index=index,...
How to rotate the background image in the container?
... to rotate the image which is placed in the button of scrollbar in Chrome. Now I have a CSS with this content:
5 Answers
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Difference: std::runtime_error vs std::exception()
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@rubenvb I did not know about that, but I think it will clearify the code for future maintenance if only objects of classes derived from exception are thrown. Example: I like to find out what custom exceptions are implemented in my code base and...
Pip freeze vs. pip list
...thon 3.2 includes wsgiref.egg-info in the Lib directory, which is why pip knows about it. You can't [un]install it with pip, and later versions of Python omit the metadata file so it won't appear.
– Zooba
Mar 17 '14 at 18:39
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