大约有 35,487 项符合查询结果（耗时：0.0458秒） [XML]
if/else in a list comprehension
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1610
You can totally do that. It's just an ordering issue:
[unicode(x.strip()) if x is not None else...
Compiling Java 7 code via Maven
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answered Dec 26 '12 at 16:50
Ryan StewartRyan Stewart
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Javascript: How to loop through ALL DOM elements on a page?
...ments in a page:
var all = document.getElementsByTagName("*");
for (var i=0, max=all.length; i < max; i++) {
// Do something with the element here
}
Note that you could use querySelectorAll(), if it's available (IE9+, CSS in IE8), to just find elements with a particular class.
if (document...
How to inspect FormData?
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320
Updated Method:
As of March 2016, recent versions of Chrome and Firefox now support using FormD...
Dynamically creating keys in a JavaScript associative array
...()
var keyValuePair = text.replace(/ /g,'').split('=');
dict[ keyValuePair[0] ] = keyValuePair[1];
alert( dict[keyValuePair[0]] );
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JRE 1.7 - java version - returns: java/lang/NoClassDefFoundError: java/lang/Object
...RE is structured differently. rt.jar and friends no longer exist, and Pack200 is no longer used.
The Java standard library is contained in various JARs, such as rt.jar, deploy.jar, jsse.jar, etc. When the JRE is packaged, these critical JAR files are compressed with Pack200 and stored as rt.pack, ...
ORA-00979 not a group by expression
I am getting ORA-00979 with the following query:
8 Answers
8
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Regular expression to match standard 10 digit phone number
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20 Answers
20
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Fast way of counting non-zero bits in positive integer
...alf again as much time).
On the other hand, gmpy popcount() took about 1/20th of the time of bin(n).count("1"). So if you can install gmpy, use that.
To answer a question in the comments, for bytes I'd use a lookup table. You can generate it at runtime:
counts = bytes(bin(x).count("1") for x in r...
Named string formatting in C#
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130
There is no built-in method for handling this.
Here's one method
string myString = "{foo} is {...