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How to check if a string contains a substring in Bash
...so note that you can reverse the comparison by just switching to != in the test. Thanks for the answer!
– Quinn Taylor
Jul 30 '09 at 17:14
65
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Django dynamic model fields
...ill Hardy's talk at DjangoCon 2011 (watch it!) are nevertheless robust and tested in production (relevant source code).
First to implement this was Michael Hall.
Yes, this is magic, with these approaches you can achieve fully dynamic Django apps, models and fields with any relational database back...
Check if string contains only whitespace
How can I test if a string contains only whitespace?
11 Answers
11
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How do I convert CamelCase into human-readable names in Java?
...
This works with your testcases:
static String splitCamelCase(String s) {
return s.replaceAll(
String.format("%s|%s|%s",
"(?<=[A-Z])(?=[A-Z][a-z])",
"(?<=[^A-Z])(?=[A-Z])",
"(?<=[A-Za-z])(?=[^A-Za-z])"...
What characters are forbidden in Windows and Linux directory names?
.../, '\0'; the name . was the current directory, of course). It was used to test the Bourne shell and routinely wrought havoc on unwary programs such as backup programs.
Other people have covered the Windows rules.
Note that MacOS X has a case-insensitive file system.
1 It was Kernighan & Pik...
Deleting lines from one file which are in another file
... 1 2 100000); do echo "$i"; done|sort --random-sort > file2
$ time ruby test.rb > ruby.test
real 0m0.639s
user 0m0.554s
sys 0m0.021s
$time sort file1 file2|uniq -u > sort.test
real 0m2.311s
user 0m1.959s
sys 0m0.040s
$ diff <(sort -n ruby.test) <(sort -n sort....
Check if string begins with something? [duplicate]
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Here is a test case for this: jsperf.com/starts-with/2 . Substring method appears to be the fastest on my machine (with V8).
– Pijusn
Jul 20 '13 at 19:34
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jQuery .hasClass() vs .is()
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Update:
I committed a test following a comment and four upvotes to very comment. It turns out that what I had said is the correct answer. Here is the result:
http://jsperf.com/hasclass-vs-is-so
The is is multi-purpose, you can for example do is(...
How do you use script variables in psql?
...ontrary to Bryce's report, it seems to work fine for me. CREATE TABLE test (name VARCHAR, age INT); INSERT INTO test (name, age) VALUES ('Jack', 21), ('Jill', 20); WITH vars AS (SELECT N'Jack' AS name, 21 AS age) SELECT test.* FROM test, vars WHERE test.name = vars.name and te...
How to explain dependency injection to a 5-year-old? [closed]
...ing this way becomes problematic especially when you want to perform unit testing.
The main problem comes when you need to test one particular object, you need to create an instance of other object, and most likely you need to create an instance of yet other object to do that. The chain may become...