大约有 11,644 项符合查询结果（耗时：0.0323秒） [XML]
Create RegExps on the fly using string variables
...ng but string_to_replace
What does that mean, you want to replace all stretches of text not taking part in a match against the string? A replacement with ^ certainly doesn't this, because ^ means a start-of-string token, not a negation. ^ is only a negation in [] character groups. There are also n...
How to render and append sub-views in Backbone.js
... this thread, including rendering order, not having to re-delegate events, etc. Note that the case of a collection view (where each model in the collection is represented with one subview) is a different topic. Best general solution I am aware of to that case is the CollectionView in Marionette.
...
What is the difference between BIT and TINYINT in MySQL?
...
In my opinion it is not my fault, that some interfaces etc. do interpret the correct binary data incorrectly. If an administrator (including myself) complains about some symbol (referring to MySQL Wrokbench) then this is the fault of whoever misinterpreted my correct (binary) dat...
What is the difference between '>' and a space in CSS selectors?
...ments and not any descendant (including grandchildren, grand-grandchildren etc.) as in the second example without the >.
The child selector is not supported by IE 6 and lower. A great compatibility table is here.
share
...
java get file size efficiently
... fis = new FileInputStream(me);
return fis.getChannel().size();
} finally {
fis.close();
}
}
},
URL {
@Override
public long getResult() throws Exception {
InputStream stream = null;
...
ggplot with 2 y axes on each side and different scales
...ossible, e.g. given the strict restrictions imposed by scientific journals etc., in order to bring across the message quickly. Hence, adding a second y axis is being done anyway, and ggplot should, in my opinion, help in doing so.
– Stingery
Feb 11 '16 at 15:33...
SQLite Concurrent Access
...ough concurrency. (Firefox uses SQLite extensively for bookmarks, history, etc.)
For server applications, somebody some time ago said that anything less than 100K page views a day could be handled perfectly by a SQLite database in typical scenarios (e.g. blogs, forums), and I have yet to see any ev...
Convert data.frame column format from character to factor
...df, is.character, as.factor)
# select character columns 'char1', 'char2', etc. to factor:
df <- mutate_at(df, vars(char1, char2), as.factor)
share
|
improve this answer
|
...
Why is Lisp used for AI? [closed]
...pes usually are written in a younger dynamic language (Perl, Python, Ruby, etc) and implementations of successful research is usually in C or C++ (sometimes Java).
If you're curious about the 70's...well, I wasn't there. But I think Lisp was successful in AI research for three reasons (in order of ...
OOP vs Functional Programming vs Procedural [closed]
...ges were pretty small and easily replicated - C, C++, Assembler, ML, LISP, etc.. came with the basics, but tended to chicken out when it came to standardizing on things like network communications, encryption, graphics, data file formats (including XML), even basic data structures like balanced tree...