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使用App Inventor扩展实现多点触控：Rotation Detector · App Inventor 2 中文网
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This note is interesting for two aspects:
For App Inventor users, it provides a functioning Rotation Detector component that can be shared and incorporated into projects.
For App Inventor developers, it can serve as a template for a general rotation detector component that can be modified to fulf...
使用App Inventor扩展实现多点触控：Rotation Detector · App Inventor 2 中文网
...
This note is interesting for two aspects:
For App Inventor users, it provides a functioning Rotation Detector component that can be shared and incorporated into projects.
For App Inventor developers, it can serve as a template for a general rotation detector component that can be modified to fulf...
使用App Inventor扩展实现多点触控：Rotation Detector · App Inventor 2 中文网
...
This note is interesting for two aspects:
For App Inventor users, it provides a functioning Rotation Detector component that can be shared and incorporated into projects.
For App Inventor developers, it can serve as a template for a general rotation detector component that can be modified to fulf...
jQuery set radio button
I am trying to set a radio button. I want set it by using the value or the id.
12 Answers
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Relational table naming convention [closed]
...d (as opposed to pre-1970's Record Filing Systems [characterised by Record IDs which are implemented in an SQL database container for convenience):
the tables are the Subjects of the database, thus they are nouns, again, singular
the relationships between the tables are the Actions that take place...
How to make ng-repeat filter out duplicate results
...e('yourModule', ['ui', 'ui.filters']);. Was stumped until I took a look inside the AngularUI js file.
– GFoley83
Apr 27 '13 at 4:45
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MongoDB, remove object from array
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try..
db.mycollection.update(
{'_id': ObjectId("5150a1199fac0e6910000002")},
{ $pull: { "items" : { id: 23 } } },
false,
true
);
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Memcached下一站：HandlerSocket！ - 更多技术 - 清泛网 - 专注C/C++及内核技术
...建一个测试用的表：
CREATE TABLE IF NOT EXISTS `test`.`t` (
`id` int(10) unsigned NOT NULL AUTO_INCREMENT,
`a` varchar(10) NOT NULL,
`b` varchar(10) NOT NULL,
PRIMARY KEY (`id`),
KEY `a_b` (`a`,`b`)
) ENGINE=InnoDB;
注：理论上HandlerSocket支持MyISAM，InnoDB等各...
Google MAP API Uncaught TypeError: Cannot read property 'offsetWidth' of null
... runs that needs to access it.
You should put your initialization code inside an onload function or at the bottom of your HTML file, just before the tag, so the DOM is completely rendered before it executes (note that the second option is more sensitive to invalid HTML).
Note, as pointed out by m...
How to clear a notification in Android
...ice(Context.NOTIFICATION_SERVICE);
notificationManager.cancel(NOTIFICATION_ID);
In this code there is alway the same id used for notifications. If you have different notifications that need to be canceled you have to save the ids that you used to create the Notification.
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