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How to drop columns using Rails migration
...changes at once.
Here's the full list of supported change_table methods:
http://apidock.com/rails/ActiveRecord/ConnectionAdapters/SchemaStatements/change_table
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How to increase font size in a plot in R?
...eUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 4...
Limit File Search Scope in Sublime Text 2
...g the -*/foldername/* syntax in the Where field - eg:
-*/node_modules/*
http://www.sublimetext.com/forum/viewtopic.php?f=2&t=3847&start=10
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Maven-like dependency management for C++? [closed]
...file generator (generates Visual Studio or Eclipse CDT projects as well).
http://www.cmake.org/
I did really good experience with it. The best thing I like about it was the ability to produce generic project structure. So you can generically include sub-projects look-up for unit tests etc. without...
Way to ng-repeat defined number of times instead of repeating over array?
...uld do this. Note that I was inspired by a comment in the ng-repeat docs: http://jsfiddle.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>
&...
CentOS+Nginx+PHP+MySQL详细配置(图解) - PHP - 清泛IT论坛，有思想、有深度
...停止服务)
在启动完NGINX后，我们可以在浏览器中输入http://localhost查看，如下图
四、安装PHP
既然安装PHP，那GD便是不可少的，在此GD的安装不再进行描述
1、安装libpng (http://www.linu...
What's the difference between isset() and array_key_exists()? [duplicate]
...
Function isset() is faster, check http://www.php.net/manual/en/function.array-key-exists.php#82867
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Swift - class method which must be overridden by subclass
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How can I output a UTF-8 CSV in PHP that Excel will read properly?
...at I am using tsv data (tabs as delimiters instead of commas):
header ( 'HTTP/1.1 200 OK' );
header ( 'Date: ' . date ( 'D M j G:i:s T Y' ) );
header ( 'Last-Modified: ' . date ( 'D M j G:i:s T Y' ) );
header ( 'Content-Type: application/vnd.ms-excel') ;
header ( 'Content-Disposition: attachment;f...
What is the difference between sigaction and signal?
...ignals; new
applications should use sigaction()
rather than signal()
http://pubs.opengroup.org/onlinepubs/009695399/functions/signal.html#tag_03_690_07
Whether you're starting from scratch or modifying an old program, sigaction should be the right option.
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