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memcpy() vs memmove()
I am trying to understand the difference between memcpy() and memmove() , and I have read the text that memcpy() doesn't take care of the overlapping source and destination whereas memmove() does.
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How to use chrome web inspector to view hover code
...u can use Event Listener Breakpoints sidebar pane in the Scripts panel and select to pause in mouseover handlers.
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How to pass all arguments passed to my bash script to a function of mine? [duplicate]
Let's say I have defined a function abc() that will handle the logic related to analyzing the arguments passed to my script.
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jQuery: find element by text
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You can use the :contains selector to get elements based on their content.
Demo here
$('div:contains("test")').css('background-color', 'red');
<div>This is a test</div>
<div>Another Div</div>
<script src="https://...
'sudo gem install' or 'gem install' and gem locations
Running ' sudo gem list --local ' and ' gem list --local ' give me differing results. My gem path is set to my home folder and only contains the gems from ' gem list --local '.
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invalid context 0x0 under iOS 7.0 and system degradation
...oubt that's the issue. These invalid context 0x0 error messages are common and easy to reproduce in iOS 7. In fact, I can reproduce the error using storyboard with zero code. I drag a UITextField onto the canvas in IB, run the app, and double tap inside the text field.
In many situations, it's har...
How to express a NOT IN query with ActiveRecord/Rails?
...rums, lambda { |forums| { :conditions => ['forum_id not in (?)', forums.select(&:id).join(',')] }
# in your controller
Topic.not_in_forums(@forums)
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When to use a View instead of a Table?
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Oh there are many differences you will need to consider
Views for selection:
Views provide abstraction over tables. You can add/remove fields easily in a view without modifying your underlying schema
Views can model complex joins easily.
Views can hide database-specific stuff from you. E....
Combine :after with :hover
I want to combine :after with :hover in CSS (or any other pseudo selector). I basically have a list and the item with the selected class has an arrow shape applied using :after . I want the same to be true for objects that are being hovered over but cant quite get it to work. Heres the cod...
sed one-liner to convert all uppercase to lowercase?
....txt > output.txt for GNU sed works fine too
– Asfand Qazi
Apr 13 '17 at 8:49
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@ekkis OSX is ...