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What is two way binding?
...(say, by the user) are immediately reflected in the underlying model. When app data changes, so does the UI, and conversely.
This is a very solid concept to build a web application on top of, because it makes the "Model" abstraction a safe, atomic data source to use everywhere within the applicatio...
create a trusted self-signed SSL cert for localhost (for use with Express/Node)
... req.cnf -sha256
Step 4. then outside of security folder, in your express app do something like this: (credit goes to @Diego Mello)
backend
/security
/server.js
server.js:
const express = require('express')
const app = express()
const https = require('https')
const fs = require('fs')
const p...
Supabase扩展能实现实时推送吗？源码级Realtime能力分析 - App应用开发 - ...
背景
在调研 App Inventor 2 后台推送通知方案时，我们深入分析了 fun123 自研的 Supabase 扩展。Supabase 官方确实提供了 Realtime 实时推送功能，那么当前扩展是否已经封装了这些能力？能否直接用来做推送？
以下是源码级分析结...
Problems with contenttypes when loading a fixture in Django
...use of contenttypes conflicts. First I tried dumping the data from only my app like this:
15 Answers
...
How to debug apk signed for release?
...
Be sure that android:debuggable="true" is set in the application tag of your manifest file, and then:
Plug your phone into your computer and enable USB debugging on the phone
Open eclipse and a workspace containing the code for your app
In Eclipse, go to Window->Show View-...
Override devise registrations controller
...can just create your own controller, by generating something like this:
# app/controllers/registrations_controller.rb
class RegistrationsController < Devise::RegistrationsController
def new
super
end
def create
# add custom create logic here
end
def update
super
end
end...
Making macOS Installer Packages which are Developer ID ready
...is for OS X Installer packages only, packages for submission to the Mac App Store follow different rules.
5 Answers
...
Error to install Nokogiri on OSX 10.9 Maverick?
...th full XCode Install using:
gem install nokogiri -- --with-xml2-include=/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.9.sdk/usr/include/libxml2
Update
For those using Yosemite the following command will work:
gem install nokogiri -- --with-xml2-in...
Using the Android Application class to persist data
I'm working on a fairly complex Android application that requires a somewhat large amount of data about the application (I'd say a total of about 500KB -- is this large for a mobile device?). From what I can tell, any orientation change in the application (in the activity, to be more precise) cause...
What is Android keystore file, and what is it used for?
...e you mention signing apk's, it is your certificate. You are branding your application with your credentials. You can brand multiple applications with the same key, in fact, it is recommended that you use one certificate to brand multiple applications that you write. It easier to keep track of what ...