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css3 transition animation on load?
...}
...which basically says "at the start, the header will be off the left hand edge of the screen by its full width and at the end will be in place".
The second part is calling that slideInFromLeft animation:
animation: 1s ease-out 0s 1 slideInFromLeft;
Above is the shorthand version but here is th...
Strip whitespace from jsp output
...veWhitespaces is only supported by servlet containers that support JSP 2.1 and after, or in the case or Tomcat, Tomcat 6 (and some versions e.g. Tomcat 6.0.10 don't implement it properly - don't know about the others), there's more information about trimDirectiveWhitespaces here: java.sun.com/devel...
Rounding float in Ruby
...
Keep in mind that 2.3000.round(2) => 2.3 and sprintf '%.2f', 2.300 => 2.30. In my opinion this is a flaw in round(), or it should have an option to preserve trailing zeros.
– Excalibur
Feb 11 '14 at 17:06
...
MongoDB.Driver.MongoConnectionException: Unable to connect to the prim...
MongoDB.Driver.MongoConnectionException: Unable to connect to the primary member of the replica set: Too many threads are already waiting for a connection..
C# Driver:1.3.1
Replset:
localhost:10001 (primary)
localhost:10002 (member)
I have initReplset and add localhost:10002 to the replse...
PHP学习必看的一些书 - PHP - 清泛IT论坛，有思想、有深度
对应初学的PHP，应该买什么样的书？到处问人，到处求助？ 该文章列举了一些书籍，感觉还行，特此重新整理了一下。觉得有些言过其实了，或者是没必要去看的。
该书单我经过一些调整。PHP相关《PHP程序设计》(第2版) –PHP...
App Inventor 2 Encrypt.Security 安全性扩展：MD5哈希，SHA/AES/RSA/BASE6...
这是关于App Inventor和Thunkable安全性的扩展，它提供MD5哈希，SHA1和SHA256哈希，AES加密/解密，RSA加密/解密，BASE64编码/解码方法。权限此扩展程序不需要任何权限。事件OnErrorOccured抛出任何异常时将触发此事件。此事件中有两个变...
BLE UUID是对的但连接闪退：java.lang.IllegalArgumentException: UUID str...
请问UUID是对的 连接闪退，
下面是报错日志
java.lang.ExceptionInInitializerError
at edu.mit.appinventor.ble.BluetoothLEint$BLEReadOperation.subscribe(BluetoothLEint.java:357)
at edu.mit.appinventor.ble.BluetoothLEint$BLEReadOperation.run(BluetoothLEint.java:325)
at android.os....
Invoke: no method named `…………’ in class java.lang.Boolean - App I...
可能原因1：可能是因为使用了“计时器”组件，而它一直在计时，且触发计时任务导致的。删除不再使用的计时器组件即可解决。
I've deleted the "clock" which was not even in the blocks present...and it works... Maybe it helps someone.
来自...
蓝牙接收的数据怎么一行一行更新显示和，类似图2这样的 - App应用开发 - 清...
在做BLE蓝牙显示app。蓝牙端一个数据一个数据的发送，但是显示的时候后一个会覆盖上一个 无法将接收的数据全部罗列出来，而且显示的还有问题，有时候显示一个，有时候显示3个数据。求解！！使用列表显示框组件，详见文...
【教学】AppInventor2人工智能应用：Personal Audio Classifier 自行训练神...
繁体中文原文：https://blog.cavedu.com/2020/04/ ... nalaudioclassifier/
AI 行動化（AI on mobile）呼應了人類生活早已離不開手機的事實，另一方面，手機處理晶片速度一日千里，今天跑不動的東西，很快就不再是問題。對於 AI 這個議題，...