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Getting value of public static final field/property of a class in Java via reflection
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133
First retrieve the field property of the class, then you can retrieve the value. If you know t...
Python non-greedy regexes
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219
You seek the all-powerful *?
From the docs, Greedy versus Non-Greedy
the non-greedy qualif...
Can I make the foreign key field optional in Django model
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1 Answer
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What's the easiest way to call a function every 5 seconds in jQuery? [duplicate]
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edited Aug 29 '18 at 10:33
Vladimir verleg
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Read and overwrite a file in Python
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181
If you don't want to close and reopen the file, to avoid race conditions, you could truncate i...
How do I find the last occurrence of a substring in an NSString?
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1 Answer
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How to read the output from git diff?
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Lets take a look at example advanced diff from git history (in commit 1088261f in git.git repository):
diff --git a/builtin-http-fetch.c b/http-fetch.c
similarity index 95%
rename from builtin-http-fetch.c
rename to http-fetch.c
index f3e63d7..e8f44ba 100644
--- a/builtin-http-fetch.c
+++ b/ht...
What is the difference between t.belongs_to and t.references in rails?
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1 Answer
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“Uncaught TypeError: Illegal invocation” in Chrome
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199
In your code you are assigning a native method to a property of custom object.
When you call s...
How to check for Is not Null And Is not Empty string in SQL server?
...s UNKNOWN for these rather than TRUE.
CREATE TABLE T
(
C VARCHAR(10)
);
INSERT INTO T
VALUES ('A'),
(''),
(' '),
(NULL);
SELECT *
FROM T
WHERE C <> ''
Returns just the single row A. I.e. The rows with NULL or an empty strin...