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Error: The processing instruction target matching “[xX][mM][lL]” is not allowed
...ttent problems are notoriously difficult to debug. However, I cannot help more from here other than to tell you that this error is definitely deterministic: It will always be an error for an XML declaration to appear more than once or anywhere other than the top of an XML file. Good luck.
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What is the meaning of polyfills in HTML5?
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A shim is more generalized. A polyfill is a type of shim. Here is a question that explains it well: stackoverflow.com/questions/6599815/…
– Calvin Froedge
Aug 17 '11 at 3:01
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How can I check that a form field is prefilled correctly using capybara?
...@value='John']")
See http://www.w3schools.com/xpath/xpath_syntax.asp for more info.
For perhaps a prettier way:
expect(find_field('Your name').value).to eq 'John'
EDIT: Nowadays I'd probably use have_selector
expect(page).to have_selector("input[value='John']")
If you are using the page obj...
JavaScript hashmap equivalent
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Update in 2014: Answered back in 2008 this simple solution still requires more explanations. Let me clarify the idea in a Q&A form.
Your solution doesn't have a real hash. Where is it???
JavaScript is a high-level language. Its basic primitive (Object) includes a hash table to keep properties. ...
How can I create a correlation matrix in R?
...rrplot') #package corrplot
corrplot(M, method = "circle") #plot matrix
More information here: http://cran.r-project.org/web/packages/corrplot/vignettes/corrplot-intro.html
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Look up all descendants of a class in Ruby
...Rails >= 3, you have two options in place. Use .descendants if you want more than one level depth of children classes, or use .subclasses for the first level of child classes.
Example:
class Animal
end
class Mammal < Animal
end
class Dog < Mammal
end
class Fish < Animal
end
Animal...
Python to print out status bar and percentage
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How to change an Eclipse default project into a Java project
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118
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How can I get every nth item from a List?
...t sort of depends what you mean by "nth," but your interpretation might be more common. Add or subtract from i to suit your needs.
– mqp
Mar 25 '09 at 17:39
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