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String concatenation in Ruby
...t measured though). All three methods will throw an uninitialized constant error when ROOT_DIR is nil.
When dealing with pathnames, you may want to use File.join to avoid messing up with pathname separator.
In the end, it is a matter of taste.
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Is there a NumPy function to return the first index of something in an array?
...em exists in the first column, this works (although it will throw an index error if none exist) rows, columns = np.where(array==item); first_idx = sorted([r for r, c in zip(rows, columns) if c == 0])[0]
– BrT
Jan 15 '13 at 13:44
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How can I use jQuery in Greasemonkey scripts in Google Chrome?
...amp;&d.addEventListener("load",b),c!=null&&d.addEventListener("error",c),document.body.appendChild(d);return d},execute=function(a){var b,c;typeof a=="function"?b="("+a+")();":b=a,c=document.createElement("script"),c.textContent=b,document.body.appendChild(c);return c},loadAndExecute=fun...
How to generate a Dockerfile from an image?
...efused - connect(2) for /var/run/docker.sock (Errno::ECONNREFUSED) (Excon::Errors::SocketError)
– long
May 18 '16 at 15:52
9
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Are database triggers evil? [closed]
... result if it occurs to you (as it does to me) to look there. If I get an error saying a table that I'm not referencing in my sp has an FK error, I know without even thinking about it that trigger is causing the problem and so should any competent database developer. Putting business rules only in ...
is not JSON serializable
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Now getting error --> 'NoneType' object has no attribute 'concrete_model' ... And using Django 1.4+
– tuna
May 28 '13 at 11:42
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Java FileReader encoding issue
... InputStream is = new FileInputStream(filename); here i got error file not found error with Russian file name
– Bhanu Sharma
Feb 10 '14 at 8:59
3
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How to create a video from images with FFmpeg?
...format=yuv420p" "e:\out.mp4"
-safe 0 parameter prevents Unsafe file name error
Related links
FFmpeg making a video from images placed in different folders
FFMPEG An Intermediate Guide/image sequence
Concatenate – FFmpeg
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Rollback to an old Git commit in a public repo
...te them. So when you go to build (depending on your platform), you may get errors still. Delete the new files and you're good to go.
– TheWestIsThe...
Oct 9 '13 at 17:31
6
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How to catch integer(0)?
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assert_is_empty(x)
x <- 0L
assert_is_integer(x)
assert_is_empty(x)
## Error: is_empty : x has length 1, not 0.
x <- numeric(0)
assert_is_integer(x)
assert_is_empty(x)
## Error: is_integer : x is not of class 'integer'; it has class 'numeric'.
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