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Replace all non-alphanumeric characters in a string
...sn't a standard character or number such as (a-z or 0-9) with an asterisk. For example, "h^&ell`.,|o w]{+orld" is replaced with "h*ell*o*w*orld". Note that multiple characters such as "^&" get replaced with one asterisk. How would I go about doing this?
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When should I use GET or POST method? What's the difference between them?
...POSTs may have side effects. In plain English, that means that GET is used for viewing something, without changing it, while POST is used for changing something. For example, a search page should use GET, while a form that changes your password should use POST.
Also, note that PHP confuses the conc...
How do I break out of a loop in Scala?
...to sum numbers until the total is greater than 1000. You try
var sum = 0
for (i <- 0 to 1000) sum += i
except you want to stop when (sum > 1000).
What to do? There are several options.
(1a) Use some construct that includes a conditional that you test.
var sum = 0
(0 to 1000).iterator.t...
How does lucene index documents?
... about Lucene; also I read the document in this link
( http://lucene.sourceforge.net/talks/pisa ).
4 Answers
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Why can't you modify the data returned by a Mongoose Query (ex: findById)
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For cases like this where you want a plain JS object instead of a full model instance, you can call lean() on the query chain like so:
Survey.findById(req.params.id).lean().exec(function(err, data){
var len = data.survey...
Is using a lot of static methods a bad thing?
... a class when that class doesn't require to keep track of internal states. For example, if I need to transform A into B and don't rely on some internal state C that may vary, I create a static transform. If there is an internal state C that I want to be able to adjust, then I add a constructor to se...
ASP.NET MVC 3: Override “name” attribute with TextBoxFor
Is it possible when using Html.TextBoxFor to override the name attribute?
11 Answers
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What's the purpose of using braces (i.e. {}) for a single-line if or loop?
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Let's attempt to also modify i when we increment j:
int j = 0;
for (int i = 0 ; i < 100 ; ++i)
if (i % 2 == 0)
j++;
i++;
Oh no! Coming from Python, this looks ok, but in fact it isn't, as it's equivalent to:
int j = 0;
for (int i = 0 ; i < 100 ; ++i)
if (...
Set the maximum character length of a UITextField
...cterCount + string.count - range.length
return newLength <= 25
}
Before the text field changes, the UITextField asks the delegate if the specified text should be changed. The text field has not changed at this point, so we grab it's current length and the string length we're inserting (eithe...
Python timedelta in years
....2425 (instead of 365.25), which takes the 400 year exception into account for the Gregorian calendar.
– brianary
Dec 24 '09 at 21:09
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