大约有 7,000 项符合查询结果（耗时：0.0250秒） [XML]
Is there a regular expression to detect a valid regular expression?
...of the pumping lemma is that you cannot have regular strings in the form a^Nb^Mc^N, that is, two substrings having the same length separated by another string. In any way you split such strings in x, y and z, you cannot "pump" y without obtaining a string with a different number of "a" and "c", thus...
Ant task to run an Ant target only if a file exists?
...ries called "DB_*", recursively. You can adjust the filter to your needs.
NB: Apache Ant 1.7 and higher!
Here is the target to set a property if matching files exist:
<target name="check_for_sql_files">
<condition property="sql_to_deploy">
<resourcecount when="greater" ...
Using the scrollwheel in GNU screen
...t to and fro. The possibility to scroll with the mouse wheel in copy mode (nb. does not work for me) should rather be seen as a kind of "additional gimmick", but not as the main purpose of this mode.
– syntaxerror
Dec 9 '14 at 13:59
...
Make header and footer files to be included in multiple html pages
...'); ?>
No JavaScript / Jquery or additional included files required.
NB You could also convert your .html files to .php files using the following in your .htaccess file
# re-write html to php
RewriteRule ^(.*)\.html$ $1.php [L]
RewriteRule ^(.+)/$ http://%{HTTP_HOST}/$1 [R=301,L]
# re-write...
SELECT * WHERE NOT EXISTS
...
NB! NOT IN does not work as expected if namehas nullvalues. Watch from 36min 20sec in the video SESSION: 10 Query Tuning Techniques Every SQL Programmer Should Know (Kevin Kline, Aaron Bertrand).
– hlovd...
jsonify a SQLAlchemy result set in Flask [duplicate]
..."""
Return object's relations in easily serializable format.
NB! Calls many2many's serialize property.
"""
return [ item.serialize for item in self.many2many]
And now for views I can just do:
return jsonify(json_list=[i.serialize for i in qryresult.all()])
Hope this ...
What is the purpose of Node.js module.exports and how do you use it?
...equire is (usually) just a plain object whose properties may be accessed.
NB: if you overwrite exports then it will no longer refer to module.exports. So if you wish to assign a new object (or a function reference) to exports then you should also assign that new object to module.exports
It's wo...
How to change the font size on a matplotlib plot
...operties=font_prop)
lgd = plt.legend(loc='lower right', prop=font_prop) # NB different 'prop' argument for legend
lgd.set_title("Legend", prop=font_prop)
plt.show()
Hopefully this is a comprehensive answer
share
...
Linq select objects in list where exists IN (A,B,C)
...
NB: this is LINQ to objects, I am not 100% sure if it work in LINQ to entities, and have no time to check it right now. In fact it isn't too difficult to translate it to x in [A, B, C] but you have to check for yourself.
So,...
Convert String to Uri
...eActivity(getPackageManager()) != null){
startActivity(webIntent);
}
NB: There is a difference between Androids URI and Uri.
share
|
improve this answer
|
follow
...