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What do helper and helper_method do?
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The method helper_method is to explicitly share some methods defined in the controller to make them available for the view. This is used for any method that you need to access from both controllers and helpers/views (standard helper methods are not available in controllers). e.g. common u...
PHP MySQL Google Chart JSON - Complete Example
I have searched a lot to find a good example for generating a Google Chart using MySQL table data as the data source. I searched for a couple of days and realised that there are few examples available for generating a Google Chart (pie, bar, column, table) using a combination of PHP and MySQL. I fin...
How to add a custom right-click menu to a webpage?
... custom right-click menu to my web application. Can this be done without using any pre-built libraries? If so, how to display a simple custom right-click menu which does not use a 3rd party JavaScript library?
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Get the current year in JavaScript
How do I get the current year in JavaScript?
8 Answers
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Implementing IDisposable correctly
In my classes I implement IDisposable as follows:
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Should each and every table have a primary key?
I'm creating a database table and I don't have a logical primary key assigned to it. So, I'm thinking about leaving it without a primary key, but I'm feeling a bit guilty about it. Should I?
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JAX-RS — How to return JSON and HTTP status code together?
I'm writing a REST web app (NetBeans 6.9, JAX-RS, TopLink Essentials) and trying to return JSON and HTTP status code. I have code ready and working that returns JSON when the HTTP GET method is called from the client. Essentially:
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Why no generics in Go?
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this answer you will find here: http://golang.org/doc/faq#generics
Why does Go not have generic types?
Generics may well be added at some point. We don't feel an urgency for them, although we understand some programmers do.
Generics ...
搭建高可用mongodb集群（一）——配置mongodb - 大数据 & AI - 清泛网 - 专...
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输出日志如下，成功！
[initandlisten] MongoDB starting : pid=18285 port=27017 dbpath=/data/mongodbtest/master master=1
#日志显示主节点参数
[initandlisten] options: { dbpath: “/data/mongodbtest/master”, master: true }
……..
[initandlisten] waiting for connections ...
Amazon S3 CORS (Cross-Origin Resource Sharing) and Firefox cross-domain font loading
There has been a long standing issue with Firefox not loading font from different origin than the current webpage. Usually, the issue arise when the fonts are served on CDNs.
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