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How to check if a string contains a substring in Bash
...egex in a bash script, this worked perfectly!
– blast_hardcheese
Feb 14 '12 at 5:10
114
The =~ op...
sqlalchemy IS NOT NULL select
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column_obj != None will produce a IS NOT NULL constraint:
In a column context, produces the clause a != b. If the target is None, produces a IS NOT NULL.
or use isnot() (new in 0.7.9):
Implement the IS NOT operator.
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How to define @Value as optional
...swered Jan 8 '18 at 13:23
alonso_50alonso_50
9941010 silver badges1515 bronze badges
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CSS Display an Image Resized and Cropped
...elative on the containing div. If you don't, I've found that IE won't actually clip the image.
– Frank Schwieterman
Jun 26 '09 at 22:56
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Android, ListView IllegalStateException: “The content of the adapter has changed but ListView did no
...kground thread which calculates ListView contents and update ListView partially, while results are calculated.
25 Answers
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Duplicate headers received from server
...invalidChars);
string replace = Regex.Replace(name, invalidReStr, "_").Replace(";", "").Replace(",", "");
return replace;
}
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How to merge a transparent png image with another image using PIL
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To make sure the foreground contains transparency in all cases, use foreground.convert('RGBA') for the mask parameter.
– Mark Ransom
Oct 4 '12 at 2:28
2
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Class constants in python
In python, I want a class to have some "constants" (practically, variables) which will be common in all subclasses. Is there a way to do it with friendly syntax?
Right now I use:
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How do I instantiate a Queue object in java?
...n't want to do this, but it's listed as an option for the sake of covering all the bases.
new Queue<Tree>() {
public Tree element() {
...
};
public boolean offer(Tree element) {
...
};
...
};
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Shorten string without cutting words in JavaScript
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Lodash has a function specifically written for this: _.truncate
const truncate = _.truncate
const str = 'The quick brown fox jumps over the lazy dog'
truncate(str, {
length: 30, // maximum 30 characters
separator: /,?\.* +/ // separate by spaces, including preceding comma...