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How to count the frequency of the elements in an unordered list?
...the list before using groupby.
You can use groupby from itertools package if the list is an ordered list.
a = [1,1,1,1,2,2,2,2,3,3,4,5,5]
from itertools import groupby
[len(list(group)) for key, group in groupby(a)]
Output:
[4, 4, 2, 1, 2]
...
Capitalize first letter. MySQL
...;
This would turn hello to Hello, wOrLd to WOrLd, BLABLA to BLABLA, etc. If you want to upper-case the first letter and lower-case the other, you just have to use LCASE function :
UPDATE tb_Company
SET CompanyIndustry = CONCAT(UCASE(LEFT(CompanyIndustry, 1)),
LCASE(S...
How to check certificate name and alias in keystore files?
I have a bunch of .keystore files and need to find one with specific CN and alias. Is there a way to do it with keytool, jarsigner or some other tool? I found a way to check if specific keystore was used to sign a specific apk, but I also need to get the alias and certificate name in each of the fil...
mysql Foreign key constraint is incorrectly formed error
...traint is incorrectly formed error . I would like to delete table 2 record if table1 record gets deleted. Thanks for any help
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VBA - how to conditionally skip a for loop iteration
...is test for a certain condition in the loop and skip to the next iteration if true:
6 Answers
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Overriding a JavaScript function while referencing the original
...o something like this:
var a = (function() {
var original_a = a;
if (condition) {
return function() {
new_code();
original_a();
}
} else {
return function() {
original_a();
other_new_code();
}
}
})();
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Regex to match string containing two names in any order
...\b).*$
Test it.
This approach has the advantage that you can easily specify multiple conditions.
^(?=.*\bjack\b)(?=.*\bjames\b)(?=.*\bjason\b)(?=.*\bjules\b).*$
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how to read System environment variable in Spring applicationContext
...n command line. You can read this property via System.getProperty("prop"). If you would like to read a OS property then use System.getenv("os-env-variable"). See javadoc: docs.oracle.com/javase/6/docs/api/java/lang/System.html
– amra
Jan 20 '14 at 16:54
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How to get a list of column names on Sqlite3 database?
...w database version. Since I don't have some version saved, I need to check if certain column names exist.
18 Answers
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How Do I Take a Screen Shot of a UIView?
I am wondering how my iPhone app can take a screen shot of a specific UIView as a UIImage .
15 Answers
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