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E11000 duplicate key error index in mongodb mongoose
... I am explaining to a 5-year-old , so everyone can understand .
I have an app.I want people to register with their email,password and phone number .
In my MongoDB database , I want to identify people uniquely based on both their phone numbers and email - so this means that both the phone number an...
Developing cross platform mobile application [closed]
...rk to bring the product to market. Nor do they care how many platforms the app can run on when they they don't use but one platform. They just care if the app does what they need it to on the hardware they need to run it on. Unless they have a specific need to run the app on many different platfor...
The specified named connection is either not found in the configuration, not intended to be used wit
...bject and when I add it to my project, the connectionstring
is added to app.config in the connectionstring section, but when I want to create new entitycontext and use this connectionstring , this error appears
...
How to unit test an object with database queries
...ess to the database, over which I extracted an interface. Then I built an application aware database layer on top of that. This is the layer that holds all the raw SQL queries and other information. The rest of the application interacts with this higher-level database. I've found this to work pr...
SSO with CAS or OAuth?
...entralizes authentication. Use it if you want all your (probably internal) applications to ask users to login to a single server (all applications are configured to point to a single CAS server).
OpenID decentralizes authentication. Use it if you want your application to accept users login to whate...
What is the actual use of Class.forName(“oracle.jdbc.driver.OracleDriver”) while connecting to a dat
...e this as test.jsp and put it in your web directory, and redeploy your web app folder in Tomcat manager:
<%@ page import="java.sql.*" %>
<HTML>
<HEAD>
<TITLE>Simple JSP Oracle Test</TITLE>
</HEAD><BODY>
<%
Connection conn = null;
try {
Class.forName...
How to programmatically empty browser cache?
...y to programmatically empty the browser cache. I am doing this because the application caches confidential data and I'd like to remove those when you press "log out". This would happen either via server or JavaScript. Of course, using the software on foreign/public computer is still discouraged as t...
How does data binding work in AngularJS?
...king. If there is a change in value, then it fires the change event.
The $apply() method, which is what you call when you are transitioning from a non-AngularJS world into an AngularJS world, calls $digest(). A digest is just plain old dirty-checking. It works on all browsers and is totally predict...
Upgrade Node.js to the latest version on Mac OS
... that you can test different versions alongside one another. If different apps require different versions of Node.js, you can run them both.
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Live-stream video from one android phone to another over WiFi
...
If you do not need the recording and playback functionality in your app, using off-the-shelf streaming app and player is a reasonable choice.
If you do need them to be in your app, however, you will have to look into MediaRecorder API (for the server/camera app) and MediaPlayer (for client...