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How do I “source” something in my .vimrc file?
...g my vim-foo lately and I've run across a couple of plugins ( autotag.vim for example) that require them to be "sourced" in my .vimrc file. What exactly does this mean and how do I do it?
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Extract month and year from a zoo::yearmon object
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Use the format() method for objects of class "yearmon". Here is your example date (properly created!)
date1 <- as.yearmon("Mar 2012", "%b %Y")
Then we can extract the date parts as required:
> format(date1, "%b") ## Month, ...
How do I use Ruby for shell scripting?
...t:
#!/usr/bin/env ruby
require 'pathname'
p Pathname.new($0).realpath()
For file system operations I almost always use Pathname. This is a wrapper for many of the other file system related classes. Also useful: Dir, File...
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Why should I prefer to use member initialization lists?
...ng member initialization lists with my constructors... but I've long since forgotten the reasons behind this...
9 Answers
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Migration: Cannot add foreign key constraint
I'm trying to create foreign keys in Laravel however when I migrate my table using artisan i am thrown the following error:
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How to check 'undefined' value in jQuery
How we can add a check for an undefined variable, like:
11 Answers
11
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Extract elements of list at odd positions
... will be:
2, 4, 6
Explanation
The [1::2] at the end is just a notation for list slicing. Usually it is in the following form:
some_list[start:stop:step]
If we omitted start, the default (0) would be used. So the first element (at position 0, because the indexes are 0-based) would be selected....
Convert camelCaseText to Sentence Case Text
...xt.replace, I've been padding function calls with 2+ arguments with spaces for readability too
– rkd
Jan 8 '17 at 20:44
8
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Get item in the list in Scala?
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Basically I'm looking for something like ArrayList in java. I guess immutable would be fine too.
– Andriy Drozdyuk
Feb 13 '11 at 1:00
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/bin/sh: pushd: not found
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A workaround for this would be to have a variable get the current working directory. Then you can cd out of it to do whatever, then when you need it, you can cd back in.
i.e.
oldpath=`pwd`
#do whatever your script does
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# g...