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Why are dashes preferred for CSS selectors / HTML attributes?
...re separated with underscore and there were no stops.
Also, using hyphens allows you to take advantage of the |= attribute selector, which selects any element containing the text, optionally followed by a dash:
span[class|="em"] { font-style: italic; }
This would make the following HTML elements...
Python 2.7 getting user input and manipulating as string without quotations
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Use raw_input() instead of input():
testVar = raw_input("Ask user for something.")
input() actually evaluates the input as Python code. I suggest to never use it. raw_input() returns the verbatim string entered by the user.
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Check if an element is present in an array [duplicate]
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ECMAScript 2016 incorporates an includes() method for arrays that specifically solves the problem, and so is now the preferred method.
[1, 2, 3].includes(2); // true
[1, 2, 3].includes(4); // false
[1, 2, 3].includes(1, 2); // false (second parameter is the index position in this array at...
How do I set a conditional breakpoint in gdb, when char* x points to a string whose value equals “he
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This method can have side effects. $_streq method from @tlwhitec is better.
– rools
Apr 14 '19 at 14:08
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How can I visualize per-character differences in a unified diff file?
...ight space changes):
git diff --color-words='[^[:space:]]|([[:alnum:]]|UTF_8_GUARD)+'
In general:
git diff --color-words=<re>
where <re> is a regexp defining "words" for the purpose of identifying changes.
These are less noisy in that they color the changed "words", whereas using ...
Getting value of public static final field/property of a class in Java via reflection
...t(null);
Exception handling is left as an exercise for the reader.
Basically you get the field like any other via reflection, but when you call the get method you pass in a null since there is no instance to act on.
This works for all static fields, regardless of their being final. If the field ...
set gvim font in .vimrc file
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So basically for Windows all you need is to add set guifont=Consolas:h11:cANSI to the ~/.vimrc file
– Jasdeep Khalsa
Aug 14 '13 at 15:21
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What is the purpose of Rank2Types?
I am not really proficient in Haskell, so this might be a very easy question.
6 Answers
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Zero-based month numbering [closed]
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The use of zero to start counting is actually an optimization trick from Assembly programmers. Instead of assigning 1 to the count register, they XOR'ed the register with itself, which was slightly faster in CPU cycles. This meant that counting would start with 0 an...
How to convert a java.util.List to a Scala list
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import scala.collection.JavaConversions._
will do implicit conversion for you; e.g.:
var list = new java.util.ArrayList[Int](1,2,3)
list.foreach{println}
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