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get name of a variable or parameter [duplicate]
...);
public static string GETNAME<T>(T myInput) where T : class
{
if (myInput == null)
return string.Empty;
return myInput.ToString().TrimStart('{').TrimEnd('}').Split('=')[0].Trim();
}
2) The below one can be faster though (from my tests)
GETNAME(new { variable });
public s...
Converting Stream to String and back…what are we missing?
...der reader = new StreamReader(stream);
string text = reader.ReadToEnd();
If stream has already been written to, you might want to seek to the beginning before first before reading out the text: stream.Seek(0, SeekOrigin.Begin);
...
Why does Clojure have “keywords” in addition to “symbols”?
...ure documentation for Keywords and Symbols.
Keywords are symbolic identifiers that evaluate to themselves. They provide very fast equality tests...
Symbols are identifiers that are normally used to refer to something else. They can be used in program forms to refer to function parameters, l...
What's “this” in JavaScript onclick?
... JavaScript this refers to the element containing the action. For example, if you have a function called hide():
function hide(element){
element.style.display = 'none';
}
Calling hide with this will hide the element. It returns only the element clicked, even if it is similar to other elements ...
PHP Foreach Pass by Reference: Last Element Duplicating? (Bug?)
...rr[2] is a reference to the value referred to by $item. To illustrate the difference, you could also unset $arr[2], and $item would be unaffected, and writing to $item wouldn't affect it.
– Paul Biggar
Nov 22 '11 at 5:58
...
Get table column names in MySQL?
...his syntax is supported by most major databases. Best to only learn 1 way if you have to.
– Kibbee
Oct 7 '09 at 1:49
3
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What does map(&:name) mean in Ruby?
...
It's shorthand for tags.map(&:name.to_proc).join(' ')
If foo is an object with a to_proc method, then you can pass it to a method as &foo, which will call foo.to_proc and use that as the method's block.
The Symbol#to_proc method was originally added by ActiveSupport but has...
What's a “static method” in C#?
...technical limitation that prevents calling a static method on an instance? If the compiler would allow it, what is the danger of it being accessible?
– kroonwijk
Sep 12 '11 at 19:09
...
How to Add a Dotted Underline Beneath HTML Text
...
If the content has more than 1 line, adding a bottom border won't help. In that case you'll have to use,
text-decoration: underline;
text-decoration-style: dotted;
If you want more breathing space in between the text and t...
You have already activated rake 0.9.0, but your Gemfile requires rake 0.8.7
...
First, check to make sure that rake is mentioned in your Gemfile. If it's not, add it, and specify the version "you already activated".
Then, you'll need to tell bundle to update the rake version it's using for your app:
bundle update rake
It'll update your Gemfile.lock for you.
...