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Get current stack trace in Ruby without raising an exception
...on.message] }, :status => 401 }
# format.js { render :js => 'alert("Hello 401")' }
format.js { render :template => 'errors/401.js.erb' }
else
ExceptionNotifier::Notifier.exception_notification(env, exception).deliver
format.html { render :template =&...
Remove duplicate values from JS array [duplicate]
I have a very simple JavaScript array that may or may not contain duplicates.
54 Answers
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What does “Splats” mean in the CoffeeScript tutorial?
...on needs to receive more than 2 arguments for rest to be non-empty.
Since JavaScript doesn't allow multiple signatures for functions with the same name (the way C and Java do), splats are a huge time-saver for dealing with varying numbers of arguments.
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Omitting the second expression when using the if-else shorthand
... the time with PHP, and now that I'm adopting Coffeescript, I use it in my Javascript as well.
– b. e. hollenbeck
Sep 14 '12 at 0:13
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React.js: onChange event for contentEditable
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I've implemented keyPress version that alert the text when enter key is pressed. jsfiddle.net/kb3gN/11378
– Luca Colonnello
Jun 11 '15 at 12:31
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In MVVM should the ViewModel or Model implement INotifyPropertyChanged?
...ce that when it receives a Bid or Ask price for a given value it issues an alert (ex. through an email) or places an order? This could be a possible clean solution.
However, there are different ways of achieving things, but I would always argue in favor of simplicity and avoid redundancy.
What is ...
How can I find out if I have Xcode commandline tools installed?
...application, and enter $ gcc if you have not installed it you will get an alert. You can verify that you have installed it by
$ xcode-select -p
/Library/Developer/CommandLineTools
And to be sure then enter $ gcc --version
You can read more about the process here: Xcode command line tools for Ma...
How to focus on a form input text field on page load using jQuery?
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You can use HTML5 autofocus for this. You don't need jQuery or other JavaScript.
<input type="text" name="some_field" autofocus>
Note this will not work on IE9 and lower.
share
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imp...
Disable pasting text into HTML form
Is there a way using JavaScript to disable the ability to paste text into a text field on an HTML form?
23 Answers
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Detect when browser receives file download
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One possible solution uses JavaScript on the client.
The client algorithm:
Generate a random unique token.
Submit the download request, and include the token in a GET/POST field.
Show the "waiting" indicator.
Start a timer, and every second or so, l...