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What is the fastest method for selecting descendant elements in jQuery?
...parent').filter('.child') respectively.
So method 3 will always be the fastest because it needs to do the least amount of work and uses the most direct method to get first-level children.
Based on Anurag's revised speed tests here: http://jsfiddle.net/QLV9y/1/
Speed test: (More is Better)
On Chr...
How to find out if a Python object is a string?
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Python 2
Use isinstance(obj, basestring) for an object-to-test obj.
Docs.
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Understanding the main method of python [duplicate]
...alled from the command line. In many cases this is used for managing unit tests. If a particular file defines functionality which is only useful in the context of other components of a system then one can still use __name__ == "__main__" to isolate a block of code which calls a suite of unit tests...
Retrieving the text of the selected in element
...return elt.options[elt.selectedIndex].text;
}
var text = getSelectedText('test');
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How to file split at a line number [closed]
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file_name=test.log
# set first K lines:
K=1000
# line count (N):
N=$(wc -l < $file_name)
# length of the bottom file:
L=$(( $N - $K ))
# create the top of file:
head -n $K $file_name > top_$file_name
# create bottom of fil...
JavaScript .replace only replaces first Match [duplicate]
...
You need a /g on there, like this:
var textTitle = "this is a test";
var result = textTitle.replace(/ /g, '%20');
console.log(result);
You can play with it here, the default .replace() behavior is to replace only the first match, the /g modifier (global) tells it to replace a...
Escape string for use in Javascript regex [duplicate]
...Y be escaped without consequence, but are not required to be.
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Test Case: A typical url
escapeRegExp("/path/to/resource.html?search=query");
>>> "\/path\/to\/resource\.html\?search=query"
The Long Answer
If you're going to use the function above at least link to this stack ...
How to create a link to a directory [closed]
How to create a link xxx to /home/jake/doc/test/2000/something/ ?
2 Answers
2
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How do I write a Python dictionary to a csv file? [duplicate]
...ceptions occur.
Example with these changes made:
import csv
my_dict = {"test": 1, "testing": 2}
with open('mycsvfile.csv', 'wb') as f: # Just use 'w' mode in 3.x
w = csv.DictWriter(f, my_dict.keys())
w.writeheader()
w.writerow(my_dict)
Which produces:
test,testing
1,2
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How to create user for a db in postgresql? [closed]
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From CLI:
$ su - postgres
$ psql template1
template1=# CREATE USER tester WITH PASSWORD 'test_password';
template1=# GRANT ALL PRIVILEGES ON DATABASE "test_database" to tester;
template1=# \q
PHP (as tested on localhost, it works as expected):
$connString = 'port=5432 dbname=test_databa...