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iOS change navigation bar title font and color
...is works with no problem when only one NavBar is in the view
hierarchy. It appears that secondary NavBars in the same stack are ignored. (Note that if you show the master navigation controller's navBar all the other custom navBar settings are ignored).
Gotchas (deux)
Some of these are repeated wh...
How to drop columns using Rails migration
...or the comment. The change method can be used to drop a column in Rails 4 applications, but should not be used in Rails 3. I updated my answer accordingly.
– Powers
Oct 6 '13 at 21:03
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Way to ng-repeat defined number of times instead of repeating over array?
...sfiddle.net/digitalzebra/wnWY6/
Note the ng-repeat directive:
<div ng-app>
<div ng-controller="TestCtrl">
<div ng-repeat="a in range(5) track by $index">{{$index + 1}}</div>
</div>
</div>
Here is the controller:
function TestCtrl($scope) {
...
PG::ConnectionBad - could not connect to server: Connection refused
...esql
Linux Users
sudo service postgresql restart
Finally restart your app and you are good to go.
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What's a quick way to test to see a file exists?
I want to quickly check to see if a file exists in my iPhone app's Documents directory (or any path for that matter). I can enumerate through the directory's files, or I can try to open a specific file. What's the fastest way? I just need to know if the file is there or if it does not exist.
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Web Application Problems (web.config errors) HTTP 500.19 with IIS7.5 and ASP.NET v2
...art of IIS or our Web Server, but every time we try to run out ASP.NET Web Application on IIS 7.5 we get the following error...
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Running Windows batch file commands asynchronously
...ameter and returns immediately, unless executed with a /WAIT switch.
That applies to command-line apps. Apps without command line return immediately anyway, so to be sure, if you want to run all asynchronously, use START.
s...
Are there strongly-typed collections in Objective-C?
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In Xcode 7, Apple has introduced 'Lightweight Generics' to Objective-C. In Objective-C, they will generate compiler warnings if there is a type mismatch.
NSArray<NSString*>* arr = @[@"str"];
NSString* string = [arr objectAtIndex:...
ZMQ: 基本原理 - 开源 & Github - 清泛网 - 专注C++内核技术
创APP如搭积木 - 创意无限，梦想即时！ 手机版 手机“扫一扫” var qrcode = new QRCode("qrcode", { text: 'https://m.tsingfun.com/it/opensource/0MQ-The-Theoretical-Foundation.html', //URL地址 width: 180, height: 180, colorDark: '#088CEF'...
Execute method on startup in Spring
Is there any Spring 3 feature to execute some methods when the application starts for the first time? I know that I can do the trick of setting a method with @Scheduled annotation and it executes just after the startup, but then it will execute periodically.
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