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App日志及内置WebView的调试方法 - App Inventor 2 中文网 - 清泛IT社区,为创新赋能!

...器/手机 2、进入设置-关于手机,连续点击版本号进入开发者模式; 3、进入设置-系统-开发者选项; 4、启用USB调试,允许使用ADB与模拟器通信; 5、打开命令行,通过以下adb命令连接模拟器:(手机的话,插上数据线就...
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App Inventor 2 UrsAI2UDP 拓展 - UDP广播通信协议 · App Inventor 2 中文网

...- UDP广播通信协议 原作者开发动机 用法 应用场景参考 传输数据报 属性/参数 发送方地址 目标地址 二进制模式 Xmit 字节数组 发...
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Including a .js file within a .js file [duplicate]

...w element and attach that to <head> var x = document.createElement('script'); x.src = 'http://example.com/test.js'; document.getElementsByTagName("head")[0].appendChild(x); You may also use onload event to each script you attach, but please test it out, I am not so sure it works cross-brows...
https://www.tsingfun.com/ilife/tech/545.html 

2015年硅谷最火的高科技创业公司都有哪些 - 资讯 - 清泛网 - 专注C/C++及内核技术

...了解AWS,总体上成熟度很高,有大量startup都是基于上面开发,比如有名的 Netflix,Pinterest,Coursera.Amazon还是不断创新,每年召开reInvent大会推广新的云产品和分享成功案例,在这里面我随便说几个,像S3是简单面向对象的存储,Dy...
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App Inventor 2 低功耗蓝牙(BLE) 硬件接入、数据通信及IO控制 - App Invent...

低功耗蓝牙(BLE)以低功耗、低成本、开发简便逐渐被广泛应用,本文主要介绍一款较为通用、价格低廉的BLE设备从零开始如何利用App Inventor 2开发一款自己专属的手机蓝牙App应用。BLE与经典蓝牙的区别可参考:《低功耗蓝牙(BLE) ...
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Static variables in JavaScript

...c variable this.privilegedMethod = function () { // Public Method alert(privateVariable); }; } // Instance method will be available to all instances but only load once in memory MyClass.prototype.publicMethod = function () { alert(this.publicVariable); }; // Static variable share...
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How to log out user from web site using BASIC authentication?

...ill then overwrite the previous correct credentials. In short, the logout script inverts the logic of the login script, only returning the success page if the user isn't passing the right credentials. The question is whether the somewhat curious “don't enter your password” password box will me...
https://bbs.tsingfun.com/thread-1786-1-1.html 

【转】用App Inventor 2实现电子围栏功能 - App应用开发 - 清泛IT社区,为创新赋能!

在行空板《家庭安全相册》项目中,第四部分是手机APP监护人部分。这部分需要完成手机获取家庭成员传送回来的位置后,计算是否在安全的电子围栏范围内。因为电子围栏是相对复杂的部分,因此独立一章详细说明。 App In...
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Is it possible to ping a server from Javascript?

...this: put ping.html on the server with or without any content, on the javascript do same as below: <script> function ping(){ $.ajax({ url: 'ping.html', success: function(result){ alert('reply'); }, error: function(result){ ...
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Prevent any form of page refresh using jQuery/Javascript

... #1 can be implemented via window.onbeforeunload. For example: <script type="text/javascript"> window.onbeforeunload = function() { return "Dude, are you sure you want to leave? Think of the kittens!"; } </script> The user will be prompted with the message, and ...