comparator | Provides the functionality to compare PHP values | Configuration Management library
kandi X-RAY | comparator Summary
kandi X-RAY | comparator Summary
This component provides the functionality to compare PHP values for equality.
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Top functions reviewed by kandi - BETA
- Convert node to text .
- Returns a suitable comparator for the given values .
- Registers default comparators .
- Get the difference between two variables .
- Checks that two values are equal .
- Convert DateTimeInterface to string
- Returns a string representation of the exception .
- Convert object to array .
- Checks if the expected value is an object .
- Tells if a value is a float .
comparator Key Features
comparator Examples and Code Snippets
Lines of Code : 10License : Permissive (MIT License)
Copypublic List sort(List arrayToSort) {
List> buckets = splitIntoUnsortedBuckets(arrayToSort);
for(List bucket : buckets){
bucket.sort(comparator);
}
return concatenateSortedBuckets(buckets);
} public static Comparator createNaturalOrderRegexComparator() {
return Comparator.comparingDouble(NaturalOrderComparators::parseStringToNumber);
} function comparator(a, b) {
return a - b;
} Community Discussions
Trending Discussions on comparator
QUESTION
I'm currently sorting the map by value, but I couldn't think on how I would have it sorted by key for the cases that I have the same value.
Currently it works like this:
...ANSWER
Answered 2021-Jun-14 at 21:54You could check in your Comparator if the values are the same and if so compare the keys. Here is your adapted method:
QUESTION
I'm trying to validate if a returned list is sorted, but by a predefined sorting algorithm. If the list is not sorted then I should sort it via that custom sort.
I already implemented the custom sorting function, however I want to validate if the retrieved list is sorted according to that custom sort.
This is the code for the custom sort:
...ANSWER
Answered 2021-Jun-14 at 17:07Your question is a little confusing because you're saying that your method needs to validate if the input is in order but sort it if it isn't. Since this is effectively the same things as sorting it, that's what I'm implementing.
The solution that you provided does have some bugs. For instance, you're changing pos1 and pos2 in the for loop, but only checking those values once the for loop terminates.
In the solution I'm providing, I build a lookup map to find the order of a character, which is much more efficient then performing an indexOf on a string whenever a comparison has to be made. Additionally, every time we come across a character that is not in the input order or ALL_CHARS, we just add it to the map with the highest position (sorting it last).
QUESTION
Am a self learning developer, now learning Java. I have learned that to use method reference for a Functional Interface, the signature of the method we referring must match the signature of the abstract method inside that functional interface.
But While learning Comparator, found that "Comparator.comparing()" method takes Function interface and returns a Comparator. I know that the abstract method of Function interface must take a argument and return a value.
but I can able to pass any method(as method reference) that partially (not fully) matches the signature of Function interface to the comparing() method of Comparator.
for example consider the below example.
...ANSWER
Answered 2021-Jun-11 at 13:00In class Movie, getTitle() is an instance method. It therefore takes one argument, namely an argument of type Movie (the implicit parameter). To call method getTitle(), you need a target object:
QUESTION
All three lines below compiled, are there any differences? If not, is it a good Java practice to always stick to the first one as it has the least amount of code?
...ANSWER
Answered 2021-Jun-13 at 21:40It is totally equivalent rows (see diamond):
QUESTION
in the controller, I save the object. the saveOrUpdateUser method returns mono. but the redirect is faster than the object is saved to the database. Since I do not get this object in another method where the redirect occurs.
...ANSWER
Answered 2021-Jun-13 at 14:34If you have the option to change the return type of controller's method saveOrUpdateUser to Mono, you can use mono's flatMap method tô return the redirect String like:
QUESTION
I have a constructor for a Heap-Class that takes a Comparator as an argument.
...ANSWER
Answered 2021-Jun-13 at 13:54Unless I'm missing something, Comparator.naturalOrder(). Like,
QUESTION
I want to create a generalized heap data structure, and facing an issue with passing template comparator.
...ANSWER
Answered 2021-Mar-17 at 15:53template
class Comparator{
bool operator()(const T &a, const T &b){
...
// returns logic
}
}
template
class AnyClass{
public:
...
void function(){
// code ...
Comp()(obj1, obj2);
}
...
}
QUESTION
I am trying to get aggregate Marks of each student grouped by the department and sorted by their aggregate marks. This is how I am trying.
Student class properties: ...ANSWER
Answered 2021-Jun-11 at 14:06Firstly, in your Map>> the map inside the list would contain only one key-value pair. So I would suggest you to return Map>>. (Entry in java.util.Map)
Also, create a getAverageMarks in your student class which would return:
QUESTION
I have a sorted vector of structures and I am trying to find the index of element that has the queried value in its member attribute. For this I am trying to use lower_bound, but I am having problems with the comparator lambda function. Here is a simplified version of my code:
...ANSWER
Answered 2021-Apr-29 at 11:34The comparator of std::lower_bound is supposed to take the object dereferenced from the iterator, i.e. the element as the 1st parameter, the value to be compared as the 2nd parameter.
The type
Type1must be such that an object of typeForwardItcan be dereferenced and then implicitly converted toType1. The typeType2must be such that an object of typeTcan be implicitly converted toType2.
You need to change the order of the parameters, e.g.
QUESTION
I have a list of objects
...ANSWER
Answered 2021-Jun-09 at 15:03The comparator you're using is applying lexicographical ordering (where 1 comes before 2, and so on). It is not aware of any numeric patterns. It's easy to write a custom comparator that matches against a regular expression:
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