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Is there any Rails function to check if a partial exists?
...=> "#{dynamic_partial}" if File.exists?(Rails.root.join("app", "views", params[:controller], "_#{dynamic_partial}.html.erb")) %>
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Bash script to receive and repass quoted parameters
I'm trying to get quoted parameters of a bash script to safely be received by a nested script. Any ideas?
2 Answers
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How to create duplicate allowed attributes
...bute constructor take an array of strings, a string[], with or without the params modifier. Then it could be applied with the syntax [MyCustom("CONTROL", "ALT", "SHIFT", "D")] (with params).
– Jeppe Stig Nielsen
Oct 13 '13 at 15:15
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Where is the syntax for TypeScript comments documented?
...SDoc version (notice types in docs):
/**
* Returns the sum of a and b
* @param {number} a
* @param {number} b
* @returns {number}
*/
function sum(a, b) {
return a + b;
}
TypeScript version (notice the re-location of types):
/**
* Takes two numbers and returns their sum
* @param a first i...
How to read file contents into a variable in a batch file?
...tiple variables from file like this:
for /f "delims== tokens=1,2" %%G in (param.txt) do set %%G=%%H
where param.txt:
PARAM1=value1
PARAM2=value2
...
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Getting Checkbox Value in ASP.NET MVC 4
...)
And in the controller action (make sure the name matches the checkbox param name on the controller):
public ActionResult Index(string param1, string param2,
string param3, IEnumerable<bool> Chbxs)
Then in the controller you can do some stuff like:
if (Chbxs != null &...
What linux shell command returns a part of a string? [duplicate]
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From the bash manpage:
${parameter:offset}
${parameter:offset:length}
Substring Expansion. Expands to up to length characters of
parameter starting at the character specified by offset.
[...]
Or, if you are not sure of ha...
How can I benchmark JavaScript code? [closed]
...mes.
/**
* Figure out how long it takes for a method to execute.
*
* @param {Function} method to test
* @param {number} iterations number of executions.
* @param {Array} args to pass in.
* @param {T} context the context to call the method in.
* @return {number} the time it took, in millis...
What is the difference between range and xrange functions in Python 2.X?
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xrange only stores the range params and generates the numbers on demand. However the C implementation of Python currently restricts its args to C longs:
xrange(2**32-1, 2**32+1) # When long is 32 bits, OverflowError: Python int too large to convert to ...
How do I get a PHP class constructor to call its parent's parent's constructor?
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The ugly workaround would be to pass a boolean param to Papa indicating that you do not wish to parse the code contained in it's constructor. i.e:
// main class that everything inherits
class Grandpa
{
public function __construct()
{
}
}
class Papa exten...