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How to display unique records from a has_many through relationship?
...ay to display unique records from a has_many, through relationship in Rails3.
4 Answers
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How do I write data into CSV format as string (not file)?
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edited Jan 13 '17 at 21:13
TH22
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answe...
Difference Between Invoke and DynamicInvoke
...alidated. For example:
Func<int,int> twice = x => x * 2;
int i = 3;
int j = twice.Invoke(i);
// or just:
int j = twice(i);
However! If you just know that it is Delegate, it has to resolve the parameters etc manually - this might involve unboxing, etc - a lot of reflection is going on. Fo...
How do I get a plist as a Dictionary in Swift?
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In swift 3.0 Reading from Plist.
func readPropertyList() {
var propertyListFormat = PropertyListSerialization.PropertyListFormat.xml //Format of the Property List.
var plistData: [String: AnyObject] = [:] //Our data
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How to get unique values in an array
... arr.push(this[i]);
}
}
return arr;
}
var duplicates = [1, 3, 4, 2, 1, 2, 3, 8];
var uniques = duplicates.unique(); // result = [1,3,4,2,8]
console.log(uniques);
For more reliability, you can replace contains with MDN's indexOf shim and check if each element's indexOf is e...
How to set UICollectionViewDelegateFlowLayout?
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3 Answers
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What are the differences between vector and list data types in R?
...tors are "atomic vectors" in strict R parlance:
aaa <- vector("list", 3)
is.list(aaa) #TRUE
is.vector(aaa) #TRUE
Lists are a "recursive" type (of vector) whereas atomic vectors are not:
is.recursive(aaa) # TRUE
is.atomic(aaa) # FALSE
You process data objects with different functions...
What is the MySQL VARCHAR max size?
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300
Keep in mind that MySQL has a maximum row size limit
The internal representation of a MySQ...
What is the purpose of the EBP frame pointer register?
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edited Sep 13 '17 at 18:21
answered Feb 23 '09 at 20:55
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How to tell Maven to disregard SSL errors (and trusting all certs)?
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You can disable SSL certificate checking by adding one or more of these command line parameters...