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Can a pointer to base point to an array of derived objects?
I went to a job interview today and was given this interesting question.
3 Answers
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Attach parameter to button.addTarget action in Swift
...parameters in addTarget:.One alternative is set the tag property of button and do work based on the tag.
button.tag = 5
button.addTarget(self, action: "buttonClicked:",
forControlEvents: UIControlEvents.TouchUpInside)
Or for Swift 2.2 and greater:
button.tag = 5
button.addTarget(self,action...
Select count(*) from multiple tables
How can I select count(*) from two different tables (call them tab1 and tab2 ) having as result:
18 Answers
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Vim delete blank lines
What command can I run to remove blank lines in Vim?
14 Answers
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addEventListener not working in IE8
...to call a function on click of the checkbox, which works in Google Chrome and Firefox but doesn't work in Internet Explorer 8 . This is my code:
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Ruby on Rails patterns - decorator vs presenter
...all sorts of talk lately in the Ruby on Rails community about decorators and presenters.
2 Answers
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Express: How to pass app-instance to routes from a different file?
...plit up my routes into different files, where one file contains all routes and the other one the corresponding actions. I currently have a solution to achieve this, however I need to make the app-instance global to be able to access it in the actions.
My current setup looks like this:
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How do I add tab completion to the Python shell?
... readline not available.")
else:
import rlcompleter
readline.parse_and_bind("tab: complete")
then in your .bashrc file, add
export PYTHONSTARTUP=~/.pythonrc
That seems to work.
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Multiple commands on same line
I've been trying to find something that will let me run multiple commands on the same line in Vim, akin to using semicolons to separate commands in *nix systems or & in Windows. Is there a way to do this?
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JavaScript - Get Portion of URL Path
... the same properties for any URL:
It turns out that this schema is being standardized as an interface called URLUtils, and guess what? Both the existing window.location object and anchor elements implement the interface.
So you can use the same properties above for any URL — just create an anchor...