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How to use Checkbox inside Select Option
... display property from "none" to "block" and vice versa.
The solution was tested in the following browsers: Internet Explorer 10, Firefox 34, Chrome 39. The browser needs to have JavaScript enabled.
More information:
CSS positioning
How to overlay one div over another div
http://www.w3schools...
SQLite add Primary Key
...eger,j integer,t text,primary key(i,j))' WHERE name='tab1';
COMMIT;
Some tests (in sqlite shell):
sqlite> explain query plan select * from tab1 order by i,j;
0|0|0|SCAN TABLE tab1 USING INDEX sqlite_autoindex_tab1_1
sqlite> drop index sqlite_autoindex_tab1_1;
Error: index associated with UN...
What is an example of the Liskov Substitution Principle?
...e the other to match it. In this case Square fails the Liskov Substitution Test with Rectangle and the abstraction of having Square inherit from Rectangle is a bad one.
Y'all should check out the other priceless SOLID Principles Motivational Posters.
...
Assign pandas dataframe column dtypes
...nually.
In order to be flexible with fields and types I have successfully tested using StringIO + read_cvs which indeed does accept a dict for the dtype specification.
I usually get each of the files ( 5k-20k lines) into a buffer and create the dtype dictionaries dynamically.
Eventually I concat...
C++ Lock-free Hazard Pointer（冒险指针） - C/C++ - 清泛网 - 专注C/C++及内核技术
...load(std::memory_order_acquire); p; p = p->next_) {
if (!p->active_.test_and_set()) {
return p;
}
}
auto p = new HazardPointer<T>();
p->active_.test_and_set();
do {
p->next_ = head_list_.load(std::memory_order_acquire);
} while (!head_list_.co...
How to create a jQuery plugin with methods?
...can perform the desired actions to the currently selected objects.
You can test and play with the code here.
Edit: Updated code to preserve the power of the jQuery chainability.
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How to comment and uncomment blocks of code in the Office VBA Editor
...he [poor] VBA editor, and something that is basically essential for decent testing, and it was there all along :)
– RemarkLima
Oct 17 '12 at 12:40
3
...
deleting rows in numpy array
... the way, user333700's method (from his comment) was slightly faster in my tests, though it boggles my mind why.
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Exclude all transitive dependencies of a single dependency
...g.springframework.batch</groupId>
<artifactId>spring-batch-test</artifactId>
<version>2.1.8.RELEASE</version>
<exclusions>
<exclusion>
<groupId>junit</groupId>
<artifactId>junit</artifactId>...
What's to stop malicious code from spoofing the “Origin” header to exploit CORS?
...n modify it in about 8 seconds using Modify Headers for Google Chrome.
To test this, I set up two Client domains and one Server domain. I included a CORS whitelist on the Server, which allowed CORS requests from Client 1 but not from Client 2. I tested both clients, and indeed Client 1's CORS reque...