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Remove all the elements that occur in one list from another
... language feature called List Comprehensions that is perfectly suited to making this sort of thing extremely easy. The following statement does exactly what you want and stores the result in l3:
l3 = [x for x in l1 if x not in l2]
l3 will contain [1, 6].
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SELECT * FROM X WHERE id IN (…) with Dapper ORM
...edited Jan 5 '18 at 9:39
matcheek
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answered Dec 5 '11 at 16:20
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Unix command-line JSON parser? [closed]
...e this command-line parser (which you could put into a bash alias if you like), using modules built into the Perl core:
perl -MData::Dumper -MJSON::PP=from_json -ne'print Dumper(from_json($_))'
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How to Find And Replace Text In A File With C#
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Read all file content. Make a replacement with String.Replace. Write content back to file.
string text = File.ReadAllText("test.txt");
text = text.Replace("some text", "new value");
File.WriteAllText("test.txt", text);
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Accessing dict keys like an attribute?
I find it more convenient to access dict keys as obj.foo instead of obj['foo'] , so I wrote this snippet:
27 Answers
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How can I split a string with a string delimiter? [duplicate]
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string[] tokens = str.Split(new[] { "is Marco and" }, StringSplitOptions.None);
If you have a single character delimiter (like for instance ,), you can reduce that to (note the single quotes):
string[] tokens = str.Split(',');
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How to get the current branch name in Git?
I'm from a Subversion background and, when I had a branch, I knew what I was working on with "These working files point to this branch".
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How do shift operators work in Java? [duplicate]
... answered Jun 6 '12 at 8:48
Kazekage GaaraKazekage Gaara
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How to iterate a loop with index and element in Swift
...that I can use to iterate over an array and have both index and element, like Python's enumerate ?
15 Answers
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\r\n, \r and \n what is the difference between them? [duplicate]
I need to ask about the difference in a string between \r\n , \r and \n . How is a string affected by each?
4 Answers
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