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What does the (unary) * operator do in this Ruby code?
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The * is the splat operator.
It expands an Array into a list of arguments, in this case a list of arguments to the Hash.[] method. (To be more precise, it expands any object that responds to to_ary/to_a, or to_a in Ruby 1.9.)
To illustrate, the following two statements are...
Send POST Request with Data Specified in File via Curl
I need to make a POST request via Curl from the command line. Data for this request is located in a file. I know that via PUT this could be done with the --upload-file option.
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Add vertical whitespace using Twitter Bootstrap?
What's the best way to add vertical whitespace using Twitter's Bootstrap?
13 Answers
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Disable validation of HTML5 form elements
In my forms, I'd like to use the new HTML5 form types, for example <input type="url" /> ( more info about the types here ).
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What size should TabBar images be?
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30x30 is points, which means 30px @1x, 60px @2x, not somewhere in-between. Also, it's not a great idea to embed the title of the tab into the image—you're going to have pretty poor accessibility and localization results like that.
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What is `git diff --patience` for?
...g post to summarize the patience diff algorithm very well:
Patience Diff, instead, focuses its energy on the low-frequency high-content lines which serve as markers or signatures of important content in the text. It is still an LCS-based diff at its core, but with an important difference, as it onl...
Custom Python list sorting
I was refactoring some old code of mine and came across of this:
6 Answers
6
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Why does PostgreSQL perform sequential scan on indexed column?
Very simple example - one table, one index, one query:
4 Answers
4
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jQuery clone() not cloning event bindings, even with on()
I have created a series of custom jQuery events for use in mobile web applications. They work great and have been tested. However, I have run into a small problem which I am having trouble understanding.
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What is PEP8's E128: continuation line under-indented for visual indent?
Just opened a file with Sublime Text (with Sublime Linter) and noticed a PEP8 formatting error that I'd never seen before. Here's the text:
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