The App Life Cycle Apps are a sophisticated interplay between your custom code and the system frameworks. The system frameworks provide the basic infrastructure that all apps need to run, and you provide the code required to customize that infrastruc…
We need to give structure to our application with logic and effects. This lessons shows how we can organize our code into two parts: main() function for logic, and effects functions for effects. // Logic (functional) function main() { return Rx.Obser…
How can we show one string on the DOM, and a completely different string on Console log? This lesson shows how we can make our main function return multiple Observables, each one targeted at a different type of effect. // Logic (functional) function…
Main function A program shall contain a global function named main, which is the designated start of the program. int main () { body } (1) int main (int argc, char *argv[]) { body } (2) int main (int argc, char *argv[] , other_parameters ) { body } (…
在express4.x中app.js被申明为一个模块,而不是一个主程序入口,在文件的最后暴露出了这个模块,如下所示 app.js module.exports = app; 但是我们在routes目录下的index.js文件中引用它却会出处,一下程序报:app.get is not a function index.js var app = require('../app'); var router = express.Router(); var photos = require('./phot…
System.Threading.ThreadStateException: 'Current thread must be set to single thread apartment (STA) mode before OLE calls can be made. Ensure that your Main function has STAThreadAttribute marked on it. This exception is only raised if a debugger is…
先推荐ios 必读文章 App Programming Guide for iOS ,请在苹果官网搜索,并仔细阅读所有内容 State Description Not running The app has not been launched or was running but was terminated by the system. Inactive The app is running in the foreground but is currently not receiving ev…