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What is the meaning of polyfills in HTML5?
...ect to work in modern browsers to work in older browsers, e.g., to support canvas (an HTML5 feature) in older browsers.
It's sort of an HTML5 technique, since it is used in conjunction with HTML5, but it's not part of HTML5, and you can have polyfills without having HTML5 (for example, to support C...
What is the difference between 'java', 'javaw', and 'javaws'?
...n for:
java command1/javaw command2
The java tool launches a Java application. It does this by starting a Java runtime environment, loading a specified class, and invoking that class's main method.
The javaw command is identical to java, except that with javaw there is no associated console wind...
How can I check that a form field is prefilled correctly using capybara?
I have a field with a proper label that I can fill in with capybara without a problem:
4 Answers
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What does “atomic” mean in programming?
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Here's an example, because an example is often clearer than a long explanation. Suppose foo is a variable of type long. The following operation is not an atomic operation:
foo = 65465498L;
Indeed, the variable is written using two separate ope...
How can I create a correlation matrix in R?
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The cor function will use the columns of the matrix in the calculation of correlation. So, the number of rows must be the same between your matrix x and matrix y. Ex.:
set.seed(1)
x <- matrix(rnorm(20), nrow=5, ncol=4)
y <- matrix(rnorm(15), nrow=5, ncol=3)
COR <- cor(x,y)
C...
Getting the count of unique values in a column in bash
...which prints both the words and their frequency.
Possible changes:
You can pipe through sort -nr (and reverse word and freq[word]) to see the result in descending order.
If you want a specific column, you can omit the for loop and simply write freq[3]++ - replace 3 with the column number.
Here...
Calling a Method From a String With the Method's Name in Ruby
How can I do what they are talking about here , but in Ruby?
4 Answers
4
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Is it possible to use Razor View Engine outside asp.net
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There are two issues here:
Yes, you can run the Razor View Engine outside of the context of an ASP.NET app domain, as explained in Andrew's blog: http://vibrantcode.com/blog/2010/11/16/hosting-razor-outside-of-aspnet-revised-for-mvc3-rc.html
However, Razor is s...
Stop Visual Studio from mixing line endings in files
...dits with CRLF instead of the line ending format of the original file. How can I stop VS from doing this? Any half decent editor should have this capability.
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how do you filter pandas dataframes by multiple columns
...taframes (with year and gender data) but adds them to a dictionary so they can be accessed later by my getDF method? def GetDF(dict,key): return dict[key]
– yoshiserry
Feb 28 '14 at 5:11
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