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How do you count the number of occurrences of a certain substring in a SQL varchar?
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The first way that comes to mind is to do it indirectly by replacing the comma with an empty string and comparing the lengths
Declare @string varchar(1000)
Set @string = 'a,b,c,d'
select len(@string) - len(replace(@string, ',', ''))
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How to capitalize the first character of each word in a string
Is there a function built into Java that capitalizes the first character of each word in a String, and does not affect the others?
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Calculate text width with JavaScript
...ke to use JavaScript to calculate the width of a string. Is this possible without having to use a monospace typeface?
24 An...
Escape a string for a sed replace pattern
...o be escaped to get their special meaning. For example, if you escape a digit in the replacement string, it will turn in to a backreference.
As Ben Blank said, there are only three characters that need to be escaped in the replacement string (escapes themselves, forward slash for end of statement a...
jQuery UI dialog positioning
I am trying to use the jQuery dialog UI library in order to position a dialog next to some text when it is hovered over. The jQuery dialog takes a position parameter which is measured from the top left corner of the current viewport (in other words, [0, 0] will always put it in the upper left h...
How to get distinct values for non-key column fields in Laravel?
This might be quite easy but have no idea how to.
12 Answers
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RegEx: Grabbing values between quotation marks
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I've been using the following with great success:
(["'])(?:(?=(\\?))\2.)*?\1
It supports nested quotes as well.
For those who want a deeper explanation of how this works, here's an explanation from user ephemient:
([""']) match a quote; ((?=(\\?))\...
MySQL - force not to use cache for testing speed of query
...eed of some queries in MySQL. The database is caching these queries making it difficult for me to get reliable results when testing how fast these queries are.
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Why can't enum's constructor access static fields?
...m's constructor access static fields and methods? This is perfectly valid with a class, but is not allowed with an enum.
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Understanding $.proxy() in jQuery
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What it ultimately does is it ensures that the value of this in a function will be the value you desire.
A common example is in a setTimeout that takes place inside a click handler.
Take this:
$('#myElement').click(function() {...