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ExpressJS - throw er Unhandled error event
I created expressjs application using the following commands:
32 Answers
32
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How to use SharedPreferences in Android to store, fetch and edit values [closed]
...:
SharedPreferences prefs = this.getSharedPreferences(
"com.example.app", Context.MODE_PRIVATE);
To read preferences:
String dateTimeKey = "com.example.app.datetime";
// use a default value using new Date()
long l = prefs.getLong(dateTimeKey, new Date().getTime());
To edit and save pre...
Apache and Node.js on the Same Server
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Great question!
There are many websites and free web apps implemented in PHP that run on Apache, lots of people use it so you can mash up something pretty easy and besides, its a no-brainer way of serving static content. Node is fast, powerful, elegant, and a sexy tool with the...
How to change the color of a CheckBox?
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android:buttonTint="@color/tint_color" />
In projects that use AppCompat library and support Android versions below 21 you can use a compat version of the buttonTint attribute:
<CheckBox
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app:buttonTint="@color/tint_color" />
In this case if you want to subclass a CheckBo...
Read/Write String from/to a File in Android
...ing = bufferedReader.readLine()) != null ) {
stringBuilder.append("\n").append(receiveString);
}
inputStream.close();
ret = stringBuilder.toString();
}
}
catch (FileNotFoundException e) {
Log.e("login activity", "File not f...
App Inventor 2 连接打印机（Printer），自定义打印的实现 - App Inventor ...
App Inventor 2 连接打印机（Printer），自定义打印的实现ai2_printer应用介绍本教程主要分享App Inventor 2连接网络打印机进行自定义打印的思路及方法，这里只进行思路的讲解及关键步骤的效果演示，细节需自行完善。主要用到社交应...
The selected run destination is not valid for this action
...I can't build it now because for some reason my only "Scheme" option is "MyApp My Mac 64-bit". How can I get this set back to iphone/ipad simulator and devices? My "Targeted Device Family" setting is iPhone/iPad.
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How do I pass an object from one activity to another on Android? [duplicate]
I need to be able to use one object in multiple activities within my app, and it needs to be the same object. What is the best way to do this?
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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 Inventor 2 中文网
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NodeJS: How to get the server's port?
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Express 4.x answer:
Express 4.x (per Tien Do's answer below), now treats app.listen() as an asynchronous operation, so listener.address() will only return data inside of app.listen()'s callback:
var app = require('express')();
var listener = app.listen(8888, function(){
console.log('Listenin...