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Difference between Convert.ToString() and .ToString()
...pty string or throw an exception? It's kind of like the difference between casting and using as: silent conversion.
– styfle
Sep 25 '12 at 23:18
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get name of a variable or parameter [duplicate]
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This doesn't seem to work for me... {"Unable to cast object of type 'System.Linq.Expressions.TypedConstantExpression' to type 'System.Linq.Expressions.MemberExpression'."}
– weberc2
Nov 29 '12 at 19:12
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How do I get the day of the week with Foundation?
...ause the weekday component of NSCalendar is an NSInteger, you will need to cast [comps weekday] to an int, if you need to, or else it will show a warning regarding this.
– mylogon
Feb 22 '16 at 11:35
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How to randomly pick an element from an array
... gives you a double between 0.0 (inclusive) and array.length (exclusive)
Casting to int will round down giving you and integer between 0 (inclusive) and array.length-1 (inclusive)
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PHP String to Float
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Use this function to cast a float value from any kind of text style:
function parseFloat($value) {
return floatval(preg_replace('#^([-]*[0-9\.,\' ]+?)((\.|,){1}([0-9-]{1,3}))*$#e', "str_replace(array('.', ',', \"'\", ' '), '', '\\1') . '.\\4...
Get ID of last inserted document in a mongoDB w/ Java driver
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To avoid casting from Object to ObjectId, given a com.mongodb.client.MongoCollection collection and a org.bson.Document doc, you can do the following:
collection.insert(doc);
ObjectId id = doc.getObjectId("_id");
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Check if property has attribute
...ng Attribute.IsDefined will eliminate one line of code and the ugly arrays/casting.
– Aaronaught
Jan 12 '10 at 18:42
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How to check if a char is equal to an empty space?
...aracter and a String, but char and String are not comparable and cannot be cast to a common base type.
There is such a thing as a Comparator in Java, but it is an interface not a method, and it is declared like this:
public interface Comparator<T> {
public int compare(T v1, T v2...
In Python, how do I convert all of the items in a list to floats?
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Don't need to cast the np.array into the list again if you like to keep it as an np.array =)
– alvas
Jun 19 '18 at 1:49
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What is “rvalue reference for *this”?
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If a class instance is not const, overload resolution will preferentially select the non-const version. If the instance is const, the user can only call the const version. And the this pointer is a const pointer, so the instance cannot be changed.
What "r-value reference for this` does is allow yo...