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In mongoDb, how do you remove an array element by its index?
...ht way of pulling/removing by array index. In fact, this is an open issue http://jira.mongodb.org/browse/SERVER-1014 , you may vote for it.
The workaround is using $unset and then $pull:
db.lists.update({}, {$unset : {"interests.3" : 1 }})
db.lists.update({}, {$pull : {"interests" : null}})
Up...
使用CSplitterWnd实现拆分窗口（多视图显示） - C/C++ - 清泛网 - 专注C/C++及内核技术
...拟方法就可以生成具有自己个性的分割窗口了。
来源：http://www.cnblogs.com/feisky/archive/2010/03/07/1680222.html
另外参考：
用MFC将SDI窗口三叉拆分并初始化各个View
最近做MFC界面，发现《深入浅出MFC》等很多资料里只是教我们如何...
Passing parameters to JavaScript files
...
I have made an example of this idea: http://plnkr.co/edit/iE0Vr7sszfqrrDIsR8Wi?p=preview
– robe007
Dec 7 '15 at 14:31
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Why is iterating through a large Django QuerySet consuming massive amounts of memory?
...ion why not use django core's Paginator and Page objects documented here:
https://docs.djangoproject.com/en/dev/topics/pagination/
Something like this:
from django.core.paginator import Paginator
from djangoapp.models import model
paginator = Paginator(model.objects.all(), 1000) # chunks of 1000...
JavaScript open in a new window, not tab
...k', 'toolbar=0,location=0,menubar=0');
For a specific URL:
window.open('http://www.google.com', '_blank', 'toolbar=0,location=0,menubar=0');
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Capitalize or change case of an NSString in Objective-C
....text = [[displayDate objectAtIndex:2] uppercaseString];
Documentation: http://developer.apple.com/library/ios/documentation/Cocoa/Reference/Foundation/Classes/NSString_Class/Reference/NSString.html#//apple_ref/occ/instm/NSString/uppercaseString
You can also use lowercaseString and capitalizedSt...
What is an index in SQL?
...entation on the subject (which is relevant for other SQL servers as well):
http://dev.mysql.com/doc/refman/5.0/en/mysql-indexes.html
An index can be used to efficiently find all rows matching some column in your query and then walk through only that subset of the table to find exact matches. If you...
Official way to ask jQuery wait for all images to load before executing something
...kov (hristo.yankov at gmail dot com)
* @version: 1.0.0 (Feb/22/2010)
* http://yankov.us
*/
(function($) {
$.fn.batchImageLoad = function(options) {
var images = $(this);
var originalTotalImagesCount = images.size();
var totalImagesCount = originalTotalImagesCount;
var elementsL...
How to use mysql JOIN without ON condition?
...
See some example in http://www.sitepoint.com/understanding-sql-joins-mysql-database/
You can use 'USING' instead of 'ON' as in the query
SELECT * FROM table1 LEFT JOIN table2 USING (id);
...
Why are data transfer objects (DTOs) an anti-pattern?
...with the use of DTOs. Bill Dudney refers to DTO explosion as an example:
http://www.softwaresummit.com/2003/speakers/DudneyJ2EEAntiPatterns.pdf
There are also a number of abuses of DTOs mentioned here:
http://anirudhvyas.com/root/2008/04/19/abuses-of-dto-pattern-in-java-world/
They originated b...