大约有 16,000 项符合查询结果（耗时：0.0261秒） [XML]
'this' vs $scope in AngularJS controllers
... the desire to support "reusable components, which should not accidentally read or modify data in the parent scope." But if a directive really does want/need to read or modify SOME SPECIFIC data in the parent scope (like the 'pane' directive does), it requires some effort: 'require' the controller w...
How do I copy to the clipboard in JavaScript?
...cluding displaying and user interacting with any security prompts.
Text is read from the DOM and placed on the clipboard.
During testing ~April 2015 only Internet Explorer was noted as displaying permissions prompts whilst writing to the clipboard.
Overriding the copy event
See Clipboard API docu...
Nested using statements in C#
...n opening brace { after the last using statement, like this:
using (StreamReader outFile = new StreamReader(outputFile.OpenRead()))
using (StreamReader expFile = new StreamReader(expectedFile.OpenRead()))
{
///...
}
s...
Entity Framework 4 / POCO - Where to start? [closed]
...s, but I can't find them. These articles are well written and I'd like to read more from this author.
share
|
improve this answer
|
follow
|
...
One line if-condition-assignment
...sure that the assignment must actually return something.
As others have already mentioned, you could do this, but it's bad because you'll probably just end up confusing yourself when reading that piece of code the next time:
if someBoolValue: num1=20
I'm not a big fan of the num1 = someBoolValue...
Hidden Features of SQL Server
... extras:
MultipleActiveResultSets=true;
This makes ADO.Net 2.0 and above read multiple, forward-only, read-only results sets on a single database connection, which can improve performance if you're doing a lot of reading. You can turn it on even if you're doing a mix of query types.
Application N...
Why would introducing useless MOV instructions speed up a tight loop in x86_64 assembly?
...
You may want to read http://research.google.com/pubs/pub37077.html
TL;DR: randomly inserting nop instructions in programs can easily increase performance by 5% or more, and no, compilers cannot easily exploit this. It's usually a combinatio...
@property retain, assign, copy, nonatomic in Objective-C
..." is the default. Always use "nonatomic". I don't know why, but the book I read said there is "rarely a reason" to use "atomic". (BTW: The book I read is the BNR "iOS Programming" book.)
readwrite vs. readonly
- "readwrite" is the default. When you @synthesize, both a getter and a setter will be cr...
How to use SharedPreferences in Android to store, fetch and edit values [closed]
...getSharedPreferences(
"com.example.app", Context.MODE_PRIVATE);
To read preferences:
String dateTimeKey = "com.example.app.datetime";
// use a default value using new Date()
long l = prefs.getLong(dateTimeKey, new Date().getTime());
To edit and save preferences
Date dt = getSomeDate();...
How do I mount a remote Linux folder in Windows through SSH? [closed]
...ecuting commands like ls, pwd, etc editors do not work well with my screen reader and an ssh session. I was wondering if it is possible to mount a Linux folder over ssh so it appears as a windows drive? This way I could edit any files I needed to with accessible software and not have to constantly u...