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Split a collection into `n` parts with LINQ?
...OfChunks");
int sizePerPacket = items.Count / numberOfChunks;
int extra = items.Count % numberOfChunks;
for (int i = 0; i < numberOfChunks - extra; i++)
yield return items.Skip(i * sizePerPacket).Take(sizePerPacket);
int alreadyReturnedCount = (numberOfChunks - extra) *...
Postgresql SELECT if string contains
...
A proper way to search for a substring is to use position function instead of like expression, which requires escaping %, _ and an escape character (\ by default):
SELECT id FROM TAG_TABLE WHERE position(tag_name in 'aaaaaaaaaaa')>0;
...
Can we write our own iterator in Java?
...ntIndex. Below is an example of using this API...
public static void main(String[] args) {
// create an array of type Integer
Integer[] numbers = new Integer[]{1, 2, 3, 4, 5};
// create your list and hold the values.
SOList<Integer> stackOverflowList = new SOList<Integer&g...
How to do a LIKE query in Arel and Rails?
...ers[:name].matches("%#{user_name}%"))
PS:
users = User.arel_table
query_string = "%#{params[query]}%"
param_matches_string = ->(param){
users[param].matches(query_string)
}
User.where(param_matches_string.(:name)\
.or(param_matches_string.(:description)))
...
RandomForestClassifier vs ExtraTreesClassifier in scikit learn
Can anyone explain the difference between the RandomForestClassifier and ExtraTreesClassifier in scikit learn. I've spent a good bit of time reading the paper:
...
Java: function for arrays like PHP's join()?
I want to join a String[] with a glue string. Is there a function for this?
22 Answers
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Accessing the index in 'for' loops?
... @user12379095 you probably have the data in the wrong type (a string) and you need to convert it to an actual list of numbers instead of a string. That is somewhat off topic here, please delete your comment and flag mine to be deleted as no longer needed when you see this.
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How can I decode HTML characters in C#?
...aracter entities. Is there anything in .NET that can convert them to plain strings?
10 Answers
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How do I split a string, breaking at a particular character?
I have this string
16 Answers
16
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Where is array's length property defined?
...ytecode instruction: arraylength. So this method:
public static void main(String[] args) {
int x = args.length;
}
is compiled into bytecode like this:
public static void main(java.lang.String[]);
Code:
0: aload_0
1: arraylength
2: istore_1
3: return
So it's not access...