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Convert string to symbol-able in ruby
...hod-i-parameterize
parameterize is a rails method, and it lets you choose what you want the separator to be. It is a dash "-" by default.
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follo...
no new variables on left side of :=
What's happening here?
4 Answers
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Can I use a function for a default value in MySql?
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This isn't quite the same as having a DEFAULT value. How would one change this answer to only set the key if the value was NULL?
– ToolmakerSteve
Apr 1 '15 at 17:38
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Removing leading zeroes from a field in a SQL statement
...ry that reads from a SQLServer database to produce an extract file. One of the requirements to remove the leading zeroes from a particular field, which is a simple VARCHAR(10) field. So, for example, if the field contains '00001A', the SELECT statement needs to return the data as '1A'.
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get size of json object
...ct that gets returned by an AJAX request and I am having some trouble with the .length because it keeps returning undefined . Just wondering if I'm using it right:
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send mail from linux terminal in one line [closed]
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mail can represent quite a couple of programs on a linux system. What you want behind it is either sendmail or postfix. I recommend the latter.
You can install it via your favorite package manager. Then you have to configure it, and once you have done that, you can send email like this:
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Take screenshots in the iOS simulator
I want to take a screenshot of my iOS application when it is running in the simulator, and save the screenshot on my Mac. How can I do this?
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HMAC-SHA1 in bash
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I realise this isn't exactly what you're asking for, but there's no point in reinventing the wheel and writing a bash version.
You can simply use the openssl command to generate the hash within your script.
[me@home] echo -n "value" | openssl dgst -sha...
How to check if a variable is null or empty string or all whitespace in JavaScript?
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What about using test() instead of match()? return str === null || (/^ *$/).test(str);
– Mario Levrero
Sep 24 '14 at 9:43
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Is it better to call ToList() or ToArray() in LINQ queries?
I often run into the case where I want to eval a query right where I declare it. This is usually because I need to iterate over it multiple times and it is expensive to compute. For example:
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