大约有 19,300 项符合查询结果（耗时：0.0289秒） [XML]
Case statement with multiple values in each 'when' block
...s a series of comma-separated expressions to the right of it, not a single identifier. Because of this, if you had when a or b, it's not clear whether this is to be taken as the equivalent of when a, b or when (a or b), the latter of which evaluates the expression a or b first before throwing it i...
Python - abs vs fabs
...() and fabs() demonstrate similar speed.
In addition to what @aix has said, one more thing to consider is the speed difference:
In [1]: %timeit abs(-5)
10000000 loops, best of 3: 102 ns per loop
In [2]: import math
In [3]: %timeit math.fabs(-5)
10000000 loops, best of 3: 194 ns per loop
So ...
if, elif, else statement issues in Bash
...
@Chinggis6 True, bad choice of words on my side.
– Camusensei
Sep 14 '17 at 15:18
add a comment
|
...
How to Get the Title of a HTML Page Displayed in UIWebView?
...
For those who just scroll down to find the answer:
- (void)webViewDidFinishLoad:(UIWebView *)webView{
NSString *theTitle=[webView stringByEvaluatingJavaScriptFromString:@"document.title"];
}
This will always work as there is no way to turn off Javascript in UIWebView.
...
How to return a result (startActivityForResult) from a TabHost Activity?
...
Oh, god! After spending several hours and downloading the Android sources, I have finally come to a solution.
If you look at the Activity class, you will see, that finish() method only sends back the result if there is a mParent property set to null. Otherwise the result is lost.
publi...
Best way to find the intersection of multiple sets?
...utput: set([1])
However, many Python programmers dislike it, including Guido himself:
About 12 years ago, Python aquired lambda, reduce(), filter() and map(), courtesy of (I believe) a Lisp hacker who missed them and submitted working patches. But, despite of the PR value, I think these featur...
Detect if called through require or directly by command line
...nd myself trying to recall how to write this goddamn code snippet, so I decided to create a simple module for it. It took me a bit to make it work since accessing caller's module info is not straightforward, but it was fun to see how it could be done.
So the idea is to call a module and ask it if th...
What are “decorators” and how are they used?
...rJS documentation and a brief (albeit interesting) mention in a youtube video .
5 Answers
...
What is the difference between tinyint, smallint, mediumint, bigint and int in MySQL?
...
I didn't know that unsigned types are available only in MySQL, this is a huge advantage of MySQL over other RDBMS. Anything changed since the day this answer posted?
– biox
Sep 20 '13 at 17...
Is there any “font smoothing” in Google Chrome?
...n the chrome board for this issue code.google.com/p/chromium/issues/detail?id=137692 it seems to be aimed as fix for v37, if I've undrestand correctly the last post in the thread.
– Gruber
May 12 '14 at 19:21
...