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What does an exclamation mark mean in the Swift language?
...?
As far as I can work out (this is very new to me, too)...
The term "wrapped" implies we should think of an Optional variable as a present, wrapped in shiny paper, which might (sadly!) be empty.
When "wrapped", the value of an Optional variable is an enum with two possible values (a little like...
Good tutorials on XMPP? [closed]
...
We simplified the process of creation chat app's under iOS using cocoa pods, you can learn more or download demo code here github.com/processone/demo-xmpp-ios
– Loegic
Jul 24 '15 at 16:36
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Converting JSON data to Java object
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I use it in an android app. It is not the fastest possible solution but it is simple enough to program to justify the lack of performance for the user until now. Maybe in a later version of the app it will be removed for a faster solution.
...
VC DDE（Dynamic Data Exchange）与EXCEL连接 - C/C++ - 清泛网 - 专注C/C++及内核技术
...案例如下：
// smdata.cpp : Defines the entry point for the console application.
//
#include "stdafx.h"
#include "windows.h"
#include <string.h>
#include "ddeml.h"
#include "stdio.h"
HDDEDATA CALLBACK DdeCallback(
UINT uType, // Transaction type.
UINT uFmt, // Clip...
How to stretch div height to fill parent div - CSS
...;
&lt;/body&gt;
With normal CSS, you can do the following. See a working app https://github.com/onmyway133/Lyrics/blob/master/index.html
#root {
position: absolute;
top: 0;
left: 0;
height: 100%;
width: 100%;
}
With flexbox, you can
html, body {
height: 100%
}
body {
display: fle...
How to set environment variables from within package.json
...ironment variable in the script command:
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"scripts": {
"start": "node app.js",
"test": "NODE_ENV=test mocha --reporter spec"
},
...
Then use process.env.NODE_ENV in your app.
Note: This is for Mac &amp; Linux only. For Windows refer to the comments.
...
Ng-model does not update controller value
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Controller as version (recommended)
Here the template
&lt;div ng-app="example" ng-controller="myController as $ctrl"&gt;
&lt;input type="text" ng-model="$ctrl.searchText" /&gt;
&lt;button ng-click="$ctrl.check()"&gt;Check!&lt;/button&gt;
{{ $ctrl.searchText }}
&lt;/div&gt;
Th...
Is it possible to import a whole directory in sass using @import?
...ies can REDUCE complexity.
My organization's project is a rather complex app. There are 119 Sass files in 17 directories. These correspond roughly to our views and are mainly used for adjustments, with the heavy lifting being handled by our custom framework. To me, a few lines of imported director...
When is layoutSubviews called?
... Oct 21 '13 at 7:09
Patrick PijnappelPatrick Pijnappel
6,0173535 silver badges3939 bronze badges
...
Google Chrome redirecting localhost to https
... this... var options = new RewriteOptions().AddRedirectToHttpsPermanent(); app.UseRewriter(options); }
– hubert17
Apr 15 '18 at 19:03
...