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How can I use Homebrew to install both Python 2 and 3 on Mac?
...ave 2.x installed via Homebrew, Homebrew will give you a message such as:
Error: python 2.7.14 is already installed
To upgrade to 3.6.5, run `brew upgrade python`
If you run:
brew upgrade python
you should be able to do:
python --version
and
python3 --version
To see what versions of Pyth...
Can I have an IF block in DOS batch file?
...ming languages, but it is not executing the statements when I try this. No error message either. This my code:
5 Answers
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Does a break statement break from a switch/select?
I know that switch / select statements break automatically after every case. I am wondering, in the following code:
6 Ans...
HTTP vs HTTPS performance
...a link?
– Jim Wolff
Nov 1 '13 at 13:05
2
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rbenv not changing ruby version
I installed rbenv according to the github directions. I am running OSX but I have tried this on a Ubuntu 12.04 VM and got the same results. The following is what i get in my terminal when I try to change ruby versions:
...
Base64 length calculation?
... use doubles because we don't want to use the floating point ops, rounding errors etc. They are just not necessary.
For this it is a good idea to remember how to perform the ceiling division: ceil(x / y) in doubles can be written as (x + y - 1) / y (while avoiding negative numbers, but beware of ov...
Laravel Schema onDelete set null
... try
$table->...->onDelete(DB::raw('set null'));
If there are any errors, would also be helpful
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How do I check if an element is really visible with JavaScript? [duplicate]
In JavaScript, how would you check if an element is actually visible?
16 Answers
16
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What is the difference between gsub and sub methods for Ruby Strings
...iced before. I've been using :gsub and it appears that they are essentially the same. Can anyone explain the difference to me? Thanks!
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How to specify a multi-line shell variable?
...quotes.
– tripleee
Jan 13 '16 at 10:05
Not sure why you want or need the leading line break. For my application I did...