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What can I use instead of the arrow operator, `->`?
... them inconsistently. Becomes really annoying when you work with templates and don't know the precise type.
– Konrad Rudolph
Oct 21 '08 at 10:15
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What is the difference between Gemfile and Gemfile.lock in Ruby on Rails
I am a beginner to Ruby on Rails and I am using Rails 3.0.9.
3 Answers
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How to automatically crop and center an image
... any arbitrary image, I want to crop a square from the center of the image and display it within a given square.
7 Answers
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jQuery Popup Bubble/Tooltip [closed]
...ng to make a "bubble" that can popup when the onmouseover event is fired and will stay open as long as the mouse is over the item that threw the onmouseover event OR if the mouse is moved into the bubble. My bubble will need to have all manners of HTML and styling including hyperlinks, images, e...
Creating a segue programmatically
...iew controller (base class) that will transition to a new view controller, and will be inherited by all derived classes. You could do this by creating a method like this one to your base class view controller:
- (IBAction)pushMyNewViewController
{
MyNewViewController *myNewVC = [[MyNewViewCont...
Ruby on Rails and Rake problems: uninitialized constant Rake::DSL
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A tweet from DHH earlier. Rake .9.0 breaks Rails and several other things, you need to:
gem "rake", "0.8.7"
in your Gemfile.
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How does the C code that prints from 1 to 1000 without loops or conditional statements work?
...prints from 1 to 1000 without loops or conditionals :
But I don't understand how it works. Can anyone go through the code and explain each line?
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Automatic TOC in github-flavoured-markdown
...ed two options to generate a toc for github-flavored-markdown:
DocToc Command Line Tool (source) requires node.js
Installation:
npm install doctoc
Usage:
npx doctoc . to add table of contents to all markdown files in the current and all sub directories.
DocToc WebApp
If you want to try it on...
How do I alter the position of a column in a PostgreSQL database table?
...e column order is either by
recreating the table, or by adding
columns and rotating data until you
reach the desired layout.
That's pretty weak, but in their defense, in standard SQL, there is no solution for repositioning a column either. Database brands that support changing the ordinal p...
Importing Maven project into Eclipse
...ect into eclipse. I found 2 ways to do it, one is through running from command line mvn eclipse:eclipse and another is to install maven eclipse plugin from eclipse. What is the difference between the both and which one is preferable?
The maven-eclipse-plugin is a Maven plugin and has always been t...