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Wrapping null-returning method in Java with Option in Scala?
...r: String): String but you don't know whether it will return you a string or a null, because it comes from Java.
4 Answer...
Tips for using Vim as a Java IDE? [closed]
...versions of UNIX symlink vi to vim.
You can get code completion with eclim
Or you can get vi functionality within Eclipse with viPlugin
Syntax highlighting is great with vim
Vim has good support for writing little macros like running ant/maven builds
Have fun :-)
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What is the 'pythonic' equivalent to the 'fold' function from functional programming?
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The Pythonic way of summing an array is using sum. For other purposes, you can sometimes use some combination of reduce (from the functools module) and the operator module, e.g.:
def product(xs):
return reduce(operator.mul, xs, 1)
Be aware that reduce is actually a fold...
How can I symlink a file in Linux? [closed]
...f symlink exists already):
ln -s /path/to/file /path/to/symlink
To create or update a symlink:
ln -sf /path/to/file /path/to/symlink
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How to use Active Support core extensions
I have Active Support 3.0.3 installed and Rails 3.0.3 with Ruby 1.8.7.
5 Answers
5
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Undoing a git bisect mistake
...g well until I accidentally hit return on the wrong line in my command history, and rather than running the test, I run 'git bisect good' (or bad). Oops - I don't yet know if this commit should be marked good or bad, yet that's what I've done.
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How do I conditionally apply CSS styles in AngularJS?
Q1. Suppose I want to alter the look of each "item" that a user marks for deletion before the main "delete" button is pressed. (This immediate visual feedback should eliminate the need for the proverbial "are you sure?" dialog box.) The user will check checkboxes to indicate which items should be d...
How do you deal with configuration files in source control?
...a typical web app and with a file configuration.whatever. Every developer working on the project will have one version for their dev boxes, there will be a dev, prod and stage versions. How do you deal with this in source control? Not check in this file at all, check it with different names or do so...
How to decode HTML entities using jQuery?
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Security note: using this answer (preserved in its original form below) may introduce an XSS vulnerability into your application. You should not use this answer. Read lucascaro's answer for an explanation of the vulnerabilities in this answer, and use the approach from either...
How to study design patterns? [closed]
...e and build up around them.
A great resource is the Data & Object Factory page. They go over the patterns, and give you both conceptual and real world examples. Their reference material is great, too.
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