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Length of a JavaScript object
...an break enumerations in various libraries. Adding methods to Object is usually safe, though.
Here's an update as of 2016 and widespread deployment of ES5 and beyond. For IE9+ and all other modern ES5+ capable browsers, you can use Object.keys() so the above code just becomes:
var size = Object...
Standard deviation of a list
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The functions are actually called stdev and pstdev, not using std for standard as one would expect. I couldn't edit the post as edits need to modify at least 6 chars...
– mknaf
Jan 6 '17 at 16:00
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IntelliJ gives Fatal Error: Unable to find package java.lang in classpath or bootclasspath
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Somehow the JDK language jars were removed from the classpath. All I had to do was reapply the JSDK home path.
Goto:
File -> Project Structure -> Platform Settings -> SDKs
Re-apply the JSDK home path.
Doing this added about 15 jars to the classpath. Apparently these are impo...
Contains method for a slice
...re with map[string] struct{}. map[string] struct{} seems like a hack especially initializing an empty struct struct {}{}
– vadasambar
Sep 12 '19 at 12:17
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也来说说ReactOS的调试 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...调试的.所以我就找了先下fDebug的的代码.在D:\ReactOS\ReactOS_src\boot\freeldr\fdebug这个目录下.
这里我啰嗦下.源代码的路径别放到目录中有空格的文件夹中,有时会导致不能编译.例如,以前我把源码放在了D:\Program Files\ReactOS_src\boot\freeldr\...
Cocoa Core Data efficient way to count entities
...n do with SELECT count(1) ...). Now I just solved this task with selecting all with NSFetchedResultsController and getting the count of the NSArray ! I am sure this is not the best way...
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How can I extract the folder path from file path in Python?
....path.split(os.path.abspath(existGDBPath))
('T:\\Data\\DBDesign', 'DBDesign_93_v141b.mdb')
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jQuery UI: Datepicker set year range dropdown to 100 years
...ed):
for (a.yearshtml+='<select class="ui-datepicker-year" onchange="DP_jQuery_'+y+".datepicker._selectMonthYear('#"+
a.id+"', this, 'Y');\" onclick=\"DP_jQuery_"+y+".datepicker._clickMonthYear('#"+a.id+"');\">";b<=g;b++)
a.yearshtml+='<option value="'+b+'"'+(b==c?' selected="selected"...
What are best practices for multi-language database design? [closed]
...e language.
In some cases we add a DefaultLanguage field, so that we can fall-back to that language if no localized data is available for a specified language.
Example:
Table "Product":
----------------
ID : int
<any other language-neutral fields>
Table "ProductTranslation...
How can I use an array of function pointers?
...l; /* address of mul() */
p[3] = div; /* address of div() */
[...]
To call one of those function pointers:
result = (*p[op]) (i, j); // op being the index of one of the four functions
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