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Best way to define private methods for a class in Objective-C
...y that there aren't methods which aren't part of the documented interface. For those methods I think that a category is fine. Rather than putting the @interface at the top of the .m file like your point 2, I'd put it into its own .h file. A convention I follow (and have seen elsewhere, I think it's ...
javascript node.js next()
..., where a reference to the next function to execute is given to a callback for it to kick-off when it's done.
See, for example, the code samples here:
http://blog.mixu.net/2011/02/02/essential-node-js-patterns-and-snippets/
Let's look at the example you posted:
function loadUser(req, res, nex...
Where to find extensions installed folder for Google Chrome on Mac?
...re defined at http://www.chromium.org/user-experience/user-data-directory. For Chrome on Mac, it's
~/Library/Application\ Support/Google/Chrome/Default
The actual location can be different, by setting the --user-data-dir=path/to/directory flag.
If only one user is registered in Chrome, look in th...
json.dumps vs flask.jsonify
...ct that already has the appropriate content-type header 'application/json' for use with json responses. Whereas, the json.dumps() method will just return an encoded string, which would require manually adding the MIME type header.
See more about the jsonify() function here for full reference.
Edit...
What is the !! (not not) operator in JavaScript?
I saw some code that seems to use an operator I don't recognize, in the form of two exclamation points, like so: !! . Can someone please tell me what this operator does?
...
jQuery table sort
...The demo was broken because the location of the plugin had changed. I have forked a fixed jsfiddle to demo sortElements which at least seems to work for me :) @999 perhaps you could update your answer to link to the fixed demo?
– Jake Worrell
Dec 5 '11 at 15:56...
How to export revision history from mercurial or git to cvs?
...
Fortunately for those of us who are still forced to use CVS, git provides pretty good tools to do exactly what you're wanting to do. My suggestions (and what we do here at $work):
Creating the Initial Clone
Use git cvsimport...
Can't su to user jenkins after installing Jenkins
... I should have answered rather than linked to the answer in a comment.
if for some reason you want to login as jenkins, you can do so with:
sudo su -s /bin/bash jenkins
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MySQL复制的概述、安装、故障、技巧、工具 - 数据库(内核) - 清泛网 - 专注...
...错误，错误信息如下：
Error ‘Duplicate entry …’ for key … on query
此时最好手动确认并删除从服务器上的无效数据，然后从主服务器复制正确数据，如果错误仍然不能解决，可以在从服务器使用SET GLOBAL sql_slave_skip_counter...
Creating multiline strings in JavaScript
...e many features, variable interpolation among others, but most importantly for this question, they can be multiline.
A template literal is delimited by backticks:
var html = `
<div>
<span>Some HTML here</span>
</div>
`;
(Note: I'm not advocating to use HTML in str...