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Unable to run app in Simulator: Xcode beta 6 iOS 8
...; Manage Devices
Click on the little + sign at the bottom
Add (if missing) all the devices that you want, or delete and recreate the ones malfunctioning.
If anyone of the simulator is not working then right click on it and delete it and then re-create it again
...
Get the client's IP address in socket.io
...it logs on git hub to figure this one out, but the following code does actually work for me now:
var io = require('socket.io').listen(server);
io.sockets.on('connection', function (socket) {
var address = socket.handshake.address;
console.log('New connection from ' + address.address + ':' + ad...
Understand convertRect:toView:, convertRect:FromView:, convertPoint:toView: and convertPoint:fromVie
...
I always find this confusing so I made a playground where you can visually explore what the convert function does. This is done in Swift 3 and Xcode 8.1b:
import UIKit
import PlaygroundSupport
class MyViewController: UIViewController {
override func viewDidLoad() {
super.viewDidL...
How to get Sinatra to auto-reload the file after each change?
...by is hard and having a
solution that works for every scenario is technically impossible.
Which is why we recommend you to do out-of-process reloading.
First you need to install rerun if you haven’t already:
$ gem install rerun
Now if you start your Sinatra app like this:
$ ru...
ComponentGroup 组件组扩展：监控内容变化和批量启用禁用组件 · App Inventor 2 中文网
...初始值。触发 AfterContentTouched 事件，组件名称参数为 “-all-“。
设置启用 SetEnable(启用)
启用或禁用 AfterContentTouched 事件的触发。设为 false 可暂时停止内容变化检测。
启用组 EnableGroup(启用)
启用或禁用组中所有已...
What is “git remote add …” and “git push origin master”?
..., git is a distributed version control system. Most operations are done locally. To communicate with the outside world, git uses what are called remotes. These are repositories other than the one on your local disk which you can push your changes into (so that other people can see them) or pull from...
How efficient can Meteor be while sharing a huge collection among many clients?
... which watches the
database for changes; and the merge box, which combines all of a
client's active subscriptions and sends them out over the network to the
client.
Publish functions
Each time a Meteor client subscribes to a collection, the server runs a
publish function. The publish function's j...
How to read an external local JSON file in JavaScript?
...
You cannot make a AJAX call to a local resource as the request is made using HTTP.
A workaround is to run a local webserver, serve up the file and make the AJAX call to localhost.
In terms of helping you write code to read JSON, you should read th...
HTTP Error 503, the service is unavailable
I'm really new to setting up web servers in general. I've got IIS 8 on Windows 8, and I'm trying to set up a little site locally, while doing some development. In IIS I choose Add Site, give a name, points to a location where I have a index.html file (I've tried different locations, latest in a c:\...
What 'additional configuration' is necessary to reference a .NET 2.0 mixed mode assembly in a .NET 4
...ing possible such as the accepted answer here but I don't see how to actually achieve this.
17 Answers
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