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Error when trying vagrant up
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Gar, that was it. Why does it say "You are now ready to vagrant up your first virtual environment!" then??
– Matt
Jun 30 '15 at 21:55
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How to write a bash script that takes optional input arguments?
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you need write to a regular variable to use the substitution
#!/bin/bash
NOW=$1
echo ${NOW:-$(date +"%Y-%m-%d")}
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What is the difference between location list and quickfix list in vim
...us to move through those lists without opening the associated windows and knowing the difference between those lists is key to using those commands efficiently.
Hands-on illustrated example:
Do :lvim foo % in foo.txt to create a location list for the window containing foo.txt.
Do :lne a few ti...
Moment.js - how do I get the number of years since a date, not rounded up?
...on's age using Moment.js , but I'm finding that the otherwise useful fromNow method rounds up the years. For instance, if today is 12/27/2012 and the person's birth date is 02/26/1978, moment("02/26/1978", "MM/DD/YYYY").fromNow() returns '35 years ago'. How can I make Moment.js ignore the numbe...
How to return an empty ActiveRecord relation?
...and it takes an argument, depending on the value of the argument, I might know that there will not be any matches, but I still want to return a relation, not an empty array:
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How do I install the yaml package for Python?
...Note that PySyck docs recommend using PyYaml, since syck is out of date). Now you know a specific package name, you can install it:
$ pip install pyyaml
If you want to install python yaml system-wide in linux, you can also use a package manager, like aptitude or yum:
$ sudo apt-get install pyth...
What key shortcuts are to comment and uncomment code?
...ss that these are the defaults, at least in the C++ defaults, but I don't know for sure. The best way to find out is to check your settings.)
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How to get started with developing Internet Explorer extensions?
...ere have experience with/in developing IE extensions that can share their knowledge? This would include code samples, or links to good ones, or documentation on the process, or anything.
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How to calculate the running time of my program? [duplicate]
I wrote a program and now I want to calculate the total running time of my program from start to end.
6 Answers
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Can someone give an example of cosine similarity, in a very simple, graphical way?
...e than Linda loves me
Jane likes me more than Julie loves me
We want to know how similar these texts are, purely in terms of word counts (and ignoring word order). We begin by making a list of the words from both texts:
me Julie loves Linda than more likes Jane
Now we count the number of times ...