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How can I view the source code for a function?
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UseMethod("t") is telling you that t() is a (S3) generic function that has methods for different object classes.
The S3 method dispatch system
For S3 classes, you can use the methods function to list the methods for a particular generic function or class.
> methods...
Count the items from a IEnumerable without iterating?
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347
IEnumerable doesn't support this. This is by design. IEnumerable uses lazy evaluation to get t...
Checking for empty arrays: count vs empty
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23
@prodigitalson I would say that count is O(1), since PHP stores the number of elements internally. Check out this answer stackoverflow.com/a...
E11000 duplicate key error index in mongodb mongoose
...t;name>).
– RickN
Jun 26 '14 at 13:51
17
Or use db.users.dropIndexes() if you're making multip...
Is there a difference between single and double quotes in Java?
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Luiggi Mendoza
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answered Jan 13 '09 at 15:54
Yuval AdamYuval Adam
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Seeding the random number generator in Javascript
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13 Answers
13
Active
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Create code first, many to many, with additional fields in association table
...e == "Pete")
.SingleOrDefault();
if (member1 != null)
{
var comment3 = new Comment { Message = "Good night!" };
var memberComment3 = new MemberComment { Member = member1,
Comment = comment3,
Somethi...
In SQL, how can you “group by” in ranges?
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edited Jul 16 at 21:43
Dale K
11.1k88 gold badges3232 silver badges5959 bronze badges
answered Oct ...
Creating an empty list in Python
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337
Here is how you can test which piece of code is faster:
% python -mtimeit "l=[]"
10000000 lo...
How to dump a table to console?
...e from Penlight:
> t = { a = { b = { c = "Hello world!", 1 }, 2, d = { 3 } } }
> require 'pl.pretty'.dump(t)
{
a = {
d = {
3
},
b = {
c = "Hello world!",
1
},
2
}
}
share
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