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Is there a foreach loop in Go?
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@topskip both are go fmt valid; just pick the best one :)
– Filip Haglund
Jun 14 '15 at 1:29
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Django South - table already exists
...ield MyModel.added_field
./manage.py migrate myapp
if there is more than one field missing you have to repeat it for each field.
3.Now you land with a bunch of new migrations so remove their files from myapp/migrations (0011 and further if you needed to add multiple fields).
4.Run this:
./manag...
How to extract text from a PDF? [closed]
Can anyone recommend a library/API for extracting the text and images from a PDF?
We need to be able to get at text that is contained in pre-known regions of the document, so the API will need to give us positional information of each element on the page.
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How to check size of a file using Bash?
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It surprises me that no one mentioned stat to check file size. Some methods are definitely better: using -s to find out whether the file is empty or not is easier than anything else if that's all you want. And if you want to find files of a size, th...
Instance v state variables in react.js
...nce but not in its state. Whenever state is updated (which should only be done by setState as suggested in a comment), React calls render and makes any necessary changes to the real DOM.
Because the value of timeout has no effect on the rendering of your component, it shouldn't live in state. Putti...
Java: getMinutes and getHours
...Time may also be included to some future version of Java as a standard component, see JSR-310.
If you must use traditional java.util.Date and java.util.Calendar classes, see their JavaDoc's for help (java.util.Calendar and java.util.Date).
You can use the traditional classes like this to fetch f...
How to convert SQL Query result to PANDAS Data Structure?
...db, or psychopg2 as needed. But when doing so, a function as simple as the one below tends to suit my needs:
import decimal
import pydobc
import numpy as np
import pandas
cnn, cur = myConnectToDBfunction()
cmd = "SELECT * FROM myTable"
cur.execute(cmd)
dataframe = __processCursor(cur, dataframe=T...
Sleeping in a batch file
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As it uses the system clock the accuracy is one second. If 2 seconds is specified, the delay can be anything between 2 seconds and 3 seconds (actually 2.99999... seconds).
– Peter Mortensen
Aug 15 '12 at 6:49
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See line breaks and carriage returns in editor
Does anyone know of a text editor on Linux that allows me to see line breaks and carriage returns? Does Vim support this feature?
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Django class-based view: How do I pass additional parameters to the as_view method?
...eption in case this is an optional parameter: use self.kwargs.get('slug', None)
– Risadinha
Sep 10 '14 at 11:04
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