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How do I preview emails in Rails?
This might be a dumb question but when I'm putting together an HTML email in Rails, is there a particularly easy built-in way to preview the template it in the browser or do I need to write some sort of custom controller that pulls it in as its view?
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Switch statement multiple cases in JavaScript
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@Barney No, without the break you can fall through to the next case.
– Seiyria
Apr 24 '15 at 17:21
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How do I pass values to the constructor on my wcf service?
I would like to pass values into the constructor on the class that implements my service.
8 Answers
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Using Chrome's Element Inspector in Print Preview Mode?
I am working on developing a website and need to work on the print view. Typically when I have layout issues I use Chrome's Element Inspector. However this does not exist in print preview mode.
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'is' versus try cast with null check
... is MyType) // cast #1
{
var myObjRef = (MyType)myObj.myProp; // needs to be cast a second time
// before using it as a MyType
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}
to this:
var myObjRef = myObj.myProp as MyType; // only one cast
if (myObjRef != null)
{
// myObjRef is already...
erb, haml or slim: which one do you suggest? And why? [closed]
... tags.
If you work on both HTML and ruby logic, or your designer is ready to learn something new (like HAML) I'd go for HAML. It is a lot more ruby-friendly, reduces char count by much and a lot more readable than ERB.
For example (taken from official HAML site):
In ERB your view will look like t...
Calculating moving average
I'm trying to use R to calculate the moving average over a series of values in a matrix. The normal R mailing list search hasn't been very helpful though. There doesn't seem to be a built-in function in R will allow me to calculate moving averages. Do any packages provide one? Or do I need to writ...
How do I set a cookie on HttpClient's HttpRequestMessage
I am trying to use the web api's HttpClient to do a post to an endpoint that requires login in the form of an HTTP cookie that identifies an account (this is only something that is #ifdef 'ed out of the release version).
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How to use a variable for the key part of a map
... [(A):1, (X):2]
For the value-part it's even easier, since there is no automagic "convert text to string" happening:
def map = [keyA:A, keyX:X]
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In Python, how does one catch warnings as if they were exceptions?
...ry (written in C) that I use in my python code is issuing warnings. I want to be able to use the try except syntax to properly handle these warnings. Is there a way to do this?
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