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What's the best way to parse command line arguments? [closed]
... will accept -q or --query as options, store the argument in an attribute called query and has a default value if you don't specify it. It is also self-documenting in that you declare the help argument (which will be used when run with -h/--help) right there with the option.
Usually you parse your...
How to generate a random string in Ruby
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Why not use SecureRandom?
require 'securerandom'
random_string = SecureRandom.hex
# outputs: 5b5cd0da3121fc53b4bc84d0c8af2e81 (i.e. 32 chars of 0..9, a..f)
SecureRandom also has methods for:
base64
random_bytes
random_number
see: http://ruby-doc....
How to see what will be updated from repository before issuing “svn update” command?
...nNumber --summarize
if you want to see what will be updated (without actually updating), run
command:
$ svn merge --dry-run -r BASE:HEAD .
if you want to know what content of a particular file has been changed in svn
server repository compared with your working copy, run command:
$ svn dif...
How to clear the cache in NetBeans
... me absolutely crazy, trying to track down bugs for hours that weren't actually there -- the class with the main method was not being found, and some custom exception classes were not being recognized as implementing Throwable... I just deleted the stupid cache, and now all of it works fine.
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git reset --hard HEAD leaves untracked files behind
...rking copy.
If you need to reset the whole repository to master including all git submodules, run this script:
git reset --hard HEAD
git clean -f -d
git checkout master
git fetch origin master
git reset --hard origin/master
git pull
git submodule update
git submodule update --init --recursive
git ...
Assign output of a program to a variable using a MS batch file
... This only works for output which is a single line of text (subsequent lines omitted after the first line break).
– GroovyCakes
Aug 7 '15 at 21:46
20
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What's the Linq to SQL equivalent to TOP or LIMIT/OFFSET?
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Technically, the questioner asked for Linq to SQL, so VB is a viable assumption. That said, ALassek, i'm a c# guy myself and prefer your answer. :-)
– David Alpert
Oct 10 '08 at 16:51
...
“Remote System Explorer Operation” causing freeze for couple of seconds
... What happens if you add new projects -- are they added automatically to that list? If not, this should not be the preferred way, since people will very probably forget to add the projects manually. What do you think?
– Till Kolditz
Aug 1 '17 at 15:09...
How do I join two SQLite tables in my Android application?
I have an Android project that has a database with two tables: tbl_question and tbl_alternative .
4 Answers
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Web-scraping JavaScript page with Python
...a web driver fast enough and easy to get the work done.
Once you have installed Phantom JS, make sure the phantomjs binary is available in the current path:
phantomjs --version
# result:
2.1.1
Example
To give an example, I created a sample page with following HTML code. (link):
<!DOCTYPE ht...