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What is Delegate? [closed]
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One question related to your answer. How is it really different from calling a function in normal way? Just because of that it is not known at runtime ?
– Naveed
Jan 11 '10 at 19:51
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How to get just one file from another branch
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By default, only the working tree is restored.
If you want to update the index as well (meaning restore the file content, and add it to the index in one command):
git restore --source experiment --staged --worktree -- app.js
# shorter:
git restore -s experiment -SW -- app.js
As Jakub Narębski m...
How to pass arguments into a Rake task with environment in Rails? [duplicate]
...s]
Original Answer
When you pass in arguments to rake tasks, you can require the environment using the :needs option. For example:
desc "Testing environment and variables"
task :hello, :message, :needs => :environment do |t, args|
args.with_defaults(:message => "Thanks for logging on")...
CSS selector with period in ID
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Classic. Just after digging through all the specs writing the question, I read through it some more and found there is an escape character. I've never needed it before, but the CSS spec does allow for backslash (\) escaping like most languages. What do you know?
So in my example, the f...
How to step through Python code to help debug issues?
...… with “n” (next)
Repeating the last debugging command… with ENTER
Quitting it all… with “q” (quit)
Printing the value of variables… with “p” (print)
a) p a
Turning off the (Pdb) prompt… with “c” (continue)
Seeing where you are… with “l” (list)
Stepping into subrout...
Why are we not to throw these exceptions?
...ther exceptions with very different semantics.
NullReferenceException and IndexOutOfRangeException are of a different kind. Now these are very specific exceptions, so throwing them could be fine. However, you still won’t want to throw these, as they usually mean that there are some actual mistake...
How to pass all arguments passed to my bash script to a function of mine? [duplicate]
...y), and then reference them as e.g. "${args[0]}" etc (note that bash array indexes start at 0, so $1 will be in args[0], etc).
Leaving off the double-quotes, with either $@ or $*, will try to split each argument up into separate words (based on whitespace or whatever's in $IFS), and also try to expa...
Get host domain from URL?
...rts of a URI for the Uri.GetLeftPart method.
http://www.contoso.com/index.htm?date=today --> http://www.contoso.com
http://www.contoso.com/index.htm#main --> http://www.contoso.com
nntp://news.contoso.com/123456@contoso.com --> nntp://news.contoso.com
file://server/fil...
Retrieve only the queried element in an object array in MongoDB collection
...ion operator, where the $ in a projection object field name represents the index of the field's first matching array element from the query. The following returns the same results as above:
db.test.find({"shapes.color": "red"}, {_id: 0, 'shapes.$': 1});
MongoDB 3.2 Update
Starting with the 3.2 ...
What is the Linux equivalent to DOS pause?
...S, this is easily accomplished with the "pause" command. Is there a Linux equivalent I can use in my script?
9 Answers
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