大约有 36,010 项符合查询结果（耗时：0.0718秒） [XML]
Using -performSelector: vs. just calling the method
...ject performSelector:@selector(aMethod)];
The second form allows you to do this:
SEL aSelector = findTheAppropriateSelectorForTheCurrentSituation();
[anObject performSelector: aSelector];
before you send the message.
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Does Java support default parameter values?
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Im curious though, why do we need a builder class when using the builder pattern. I was thinking of Student s1 = new Student().name("Spicolo").age(16).motto("Aloha, Mr Hand);
– ivanceras
Feb 14 '13 at 8:32
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Generic TryParse
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Sorry to resurrect, but does GetConverter return null? I think if it did then probably an exception should be thrown instead of essentially silently failing and return something else. When I tried it on my own class (in which I didn't define a typ...
What's the best three-way merge tool? [closed]
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KDiff3
open source, cross platform
Same interface for Linux and Windows, very smart algorithm for solving conflicts, regular expressions for automatically solving conflicts, integrate with ClearCase, SVN, Git, MS Visual Studio, editable merged file, compare directories
Its keyboard-navigati...
PHP array delete by value (not key)
...ite that your array will contain only one element with that value, you can do
$key = array_search($del_val, $array);
if (false !== $key) {
unset($array[$key]);
}
If, however, your value might occur more than once in your array, you could do this
$array = array_filter($array, function($e) use...
Get underlying NSData from UIImage
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I don't know why this answer is up-voted so many times nor that it is accepted. The OP asked to retrieve the data that was given initially. Using UIImageJPEGRepresentation or UIImagePNGRepresentation will alter the data and do ...
How can I see the entire HTTP request that's being sent by my Python application?
...osity, as described here.
Demonstration
Code excerpted from the linked documentation:
import requests
import logging
# These two lines enable debugging at httplib level (requests->urllib3->http.client)
# You will see the REQUEST, including HEADERS and DATA, and RESPONSE with HEADERS but ...
npm install error - MSB3428: Could not load the Visual C++ component “VCBuild.exe”
...our-proxy-host:your-proxy-port
run this:
npm install -g --production windows-build-tools
No need for Visual Studio. This has what you need.
References:
https://www.npmjs.com/package/windows-build-tools
https://github.com/felixrieseberg/windows-build-tools
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Using OpenSSL what does “unable to write 'random state'” mean?
...me directory is owned by root rather than your account. The quick fix:
sudo rm ~/.rnd
For more information, here's the entry from the OpenSSL FAQ:
Sometimes the openssl command line utility does not abort with a "PRNG not seeded" error message, but complains that it is "unable to write 'rand...
Current location permission dialog disappears too quickly
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While difficult to track down, the solution for this is quite simple.
Through much trial and error I found out that while the location access dialog pops up when you try to access any location services in the app for the first time, the dialog disap...