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Defining a variable with or without export
What is export for?
14 Answers
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How to get whole and decimal part of a number?
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$n = 1.25;
$whole = floor($n); // 1
$fraction = $n - $whole; // .25
Then compare against 1/4, 1/2, 3/4, etc.
In cases of negative numbers, use this:
function NumberBreakdown($number, $returnUnsigned = false)
{
$negative = 1;
if ($num...
How to debug Ruby scripts [closed]
...llowing Ruby code from the Internet and made a few changes but it doesn't work.
17 Answers
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Using Panel or PlaceHolder
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A panel expands to a span (or a div), with it's content within it. A placeholder is just that, a placeholder that's replaced by whatever you put in it.
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Match whitespace but not newlines
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Perl versions 5.10 and later support subsidiary vertical and horizontal character classes, \v and \h, as well as the generic whitespace character class \s
The cleanest solution is to use the horizontal whitespace character class \h. This will match tab and ...
Is the size of C “int” 2 bytes or 4 bytes?
Does an Integer variable in C occupy 2 bytes or 4 bytes? What are the factors that it depends on?
13 Answers
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How should I escape commas and speech marks in CSV files so they work in Excel?
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This is a problem I have run into before and I always forget about it. Excel should discontinue this behavior, as it simply creates confusion and is not a helpful rule to have in the first place. That or csv's should have mandatory no whitespace in between comma...
Git: which is the default configured remote for branch?
I have a remote bare repository hub . I work only in the master branch.
The last sentence of this error message below makes me wonder: How do I find out which is the "default configured remote for your current branch" ? And how do I set it?
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What do 'lazy' and 'greedy' mean in the context of regular expressions?
...ML tags with <.+>. Suppose you have the following:
<em>Hello World</em>
You may think that <.+> (. means any non newline character and + means one or more) would only match the <em> and the </em>, when in reality it will be very greedy, and go from the first &l...
Sorting a vector of custom objects
How does one go about sorting a vector containing custom (i.e. user defined) objects.
Probably, standard STL algorithm sort along with a predicate (a function or a function object) which would operate on one of the fields (as a key for sorting) in the custom object should be used.
Am I on the ...