大约有 40,000 项符合查询结果(耗时:0.0659秒) [XML]
Is there any boolean type in Oracle databases?
... Michael-O: I have seen that several times. For me, it's 0/1 all the time, but other programmers prefer J/N. (I live in a German speaking country)
– Erich Kitzmueller
Feb 7 '12 at 8:48
...
Detecting an undefined object property
...is the special value `undefined`");
}
To check if an object does not actually have such a property, and will therefore return undefined by default when you try and access it:
if(!o.hasOwnProperty('myProperty')) {
alert("myProperty does not exist");
}
To check if the value associated with an i...
vertical-align with Bootstrap 3
... using Twitter Bootstrap 3, and I have problems when I want to align vertically two div , for example — JSFiddle link :
...
newline in [duplicate]
...efox v12+ and Chrome 28+
<img src="'../images/foo.gif'"
alt="line 1
line 2" title="line 1
line 2">
Try a JavaScript tooltip library for a better result, something like OverLib.
share
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...
CSS transition shorthand with multiple properties?
....3s ease-out;
transition: all 0.3s ease-out;
Here is a straightforward example. Here is another one with the delay property.
Edit: previously listed here were the compatibilities and known issues regarding transition. Removed for readability.
Bottom-line: just use it. The nature of this proper...
Select Multiple Fields from List in Linq
...
Anonymous types allow you to select arbitrary fields into data structures that are strongly typed later on in your code:
var cats = listObject
.Select(i => new { i.category_id, i.category_name })
.Distinct()
.OrderByDescending(i => i.category_name)
...
Python: How to get stdout after running os.system? [duplicate]
I want to get the stdout in a variable after running the os.system call.
6 Answers
...
Getting the parent of a directory in Bash
...e important or you're gonna loose all your data
– catamphetamine
Nov 7 '14 at 16:04
14
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How to append a char to a std::string?
...e 83867 1.27 time slower than 'append'
push_back & insert 90000 more than 1.36 time slower than 'append'
Conclusion
+= seems more understandable, but if you mind about speed, use append
...
Is it possible to register a http+domain-based URL Scheme for iPhone apps, like YouTube and Maps?
...ted by an application from another one. (App WebUI and Safari Mobile for example)
– Olivier Amblet
Jan 25 '13 at 14:15
2
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