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App Inventor接入Supabase：开源免费的后端新选择 - App Inventor 2 拓展 -...
...务来了——Supabase扩展已上线测试！
如果你厌倦了TinyDB的本地限制，又不想折腾复杂的服务器搭建，Supabase就是你的最佳选择。
什么是Supabase？
Supabase是一个开源的Firebase替代品，为应用提供完整的后端服务。它的核心是...
How do you manage databases in development, test, and production?
...elopment, and a maintenance branch for bug fixes, short term enhancements, etc. Inevitably, the need arose to make changes to the schema in the branch. At this point, we already had dbChanges_n+1.sql in the Trunk, so we ended up going with a scheme like the following:
dbChanges_n.1.sql
dbChanges_n...
std::function and std::bind: what are they, and when should they be used?
...tion is more generic to work with lambdas, context capture, member methods etc.
– Shital Shah
Sep 23 '19 at 8:09
bind(...
Number of processors/cores in command line
...
The most simplest tool comes with glibc and is called getconf:
$ getconf _NPROCESSORS_ONLN
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How do I reference a javascript object property with a hyphen in it?
Using this script to make a style object of all the inherited etc styles.
11 Answers
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LEN function not including trailing spaces in SQL Server
...
Also for varchar etc. this can be collation dependant and not even a straight forward division by 2 is reliable. See example here
– Martin Smith
Jul 13 '13 at 11:33
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Why doesn't django's model.save() call full_clean()?
...orms with excluded fields, models with default values, pre_save() signals, etc.
Sources you might be intrested in:
http://code.djangoproject.com/ticket/13100
http://groups.google.com/group/django-developers/browse_frm/thread/b888734b05878f87
...
GestureDetect 扩展：手势检测扩展，识别滑动、点击和长按手势 · App Inventor 2 中文网
...同一个组件上检测多种手势？
Q: 可以自定义手势的灵敏度吗？
Q: 支持哪些布局组件？
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GestureDetect 扩展
GestureDetect 是一个...
WakeLock 扩展：保持设备唤醒扩展，防止系统休眠和电池优化 · App Inventor 2 中文网
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WakeLock 扩展
与 KeepAlive 扩展的区别
下载链接
功能概述
扩展特性
版本历史
截图
权限请求示例
应用截图
使用场景...
NSNotificationCenter addObserver in Swift
...velDidChange, .UIApplicationDidFinishLaunching, .UITextFieldTextDidChange, etc.
You can extend Notification.Name with your own custom notifications in order to stay consistent with the system notifications:
// Definition:
extension Notification.Name {
static let yourCustomNotificationName = No...