大约有 47,000 项符合查询结果（耗时：0.0777秒） [XML]
Access restriction: The type 'Application' is not API (restriction on required library rt.jar)
...ually right about what is and what isn't part of the public API.
Problem
Now, there can be situations, where you want to use public Non-API, like sun.misc (you shouldn't, unless you know what you're doing). And there can be situations, where Eclipse is not really right (that's what happened to me,...
Finding the type of an object in C++
...
Good if you really don't know what your object is. The accepted answer assumes you do.
– unludo
Feb 28 '12 at 16:01
4
...
How to send SMS in Java
...
There is an API called SMSLib, it's really awesome.
http://smslib.org/
Now you have a lot of Saas providers that can give you this service using their APIs
Ex: mailchimp, esendex, Twilio, ...
share
|
...
Determine which element the mouse pointer is on top of in JavaScript
...
It is well supported now in 2018.
– Boy
Oct 24 '18 at 19:25
add a comment
|
...
Cropping an UIImage
... an image, similar to what's seen in the album view of the Photos app. (I know I could use a UIImageView and adjust the crop mode to achieve the same results, but these images are sometimes displayed in UIWebViews ).
...
Search stops working for “Entire Solution”
...
In Visual studio 2017 version this "bug" has been fixed! Now search tool remains locked and CTRL+Break doesn't work. Good! :(
– tedebus
Sep 7 '17 at 8:04
...
Filter by property
...) if x.myProperty == [...]]
MyModel.objects.filter(id__in=objects_id)
I know it's not the most performatic solution, but may help in simple cases as mine
share
|
improve this answer
|
...
IPC performance: Named Pipe vs Socket
...urely trying to optimize something that isn't yet problematic. Unless you know sockets are going to be a bottleneck, I'd just use them.
A lot of people who swear by named pipes find a little savings (depending on how well everything else is written), but end up with code that spends more time block...
Tainted canvases may not be exported
...r me
img.src = src;
return img;
}
And in your callback you can now use ctx.drawImage and export it using toDataURL
share
|
improve this answer
|
follow
...
How do I compute derivative using Numpy?
...**2 + 1
def d_fun(x):
h = 1e-5
return (fun(x+h)-fun(x-h))/(2*h)
Now, you can numerically find the derivative at x=5:
In [1]: d_fun(5)
Out[1]: 9.999999999621423
share
|
improve this answ...