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Removed extra column from comparison matrix
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‎README.md

Lines changed: 47 additions & 47 deletions
Original file line numberDiff line numberDiff line change
@@ -18,63 +18,63 @@ For Example
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collection.stream().filter();
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```
2020

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|Operation|C#|Java|Comment|
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|---------|--|----|-------|
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|**Filter**|`Where`|`filter(lambda)`|Native types require `Arrays.stream(int[]).boxed()`|
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|**Projection**|`Select`|`map(lambda)`|Native types require Arrays.stream(int[]).boxed()`|
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||`SelectMany`|`.flatmap(lambda)`|||
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|**Partitioning**|`Take(n)`|`.limit(n`||
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||`TakeWhile(predicate)`|`takewhile(predicate)`||
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||`Skip(n)`|`array[n:]`||
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||`SkipWhile(predicate)`|`dropwhile(predicate, sequence)`||
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|**Ordering**|`OrderBy`|`sorted()`||
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||`OrderBy(lambda)`|`sorted(lambda)`||
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||`OrderByDescending`|`sorted(Comparator.comparing(lamda, Comparator.reverseOrder()))`||
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||`OrderByDescending(lambda)`|`sorted(Comparator.comparing(lamda, Comparator.reverseOrder()))`||
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||`ThenBy`|`sorted(Comparator).comparing(lambda).thenComparing(lambda));`||
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||`ThenByDescending`|`sorted(Comparator).comparing(lambda).thenComparing(lambda), Comparator.reverseOrder()))`||
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||`Reverse`|`collect(Collectors.toCollection(LinkedList::new)).descendingIterator();`||
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|**Grouping**|`GroupBy`|`.collect(Collectors.groupingBy(lamnda, Collectors.toList()));`||
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|Operation|C#|Java|
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|---------|--|----|
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|**Filter**|`Where`|`filter(lambda)`|
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|**Projection**|`Select`|`map(lambda)`|
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||`SelectMany`|`.flatmap(lambda)`|
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|**Partitioning**|`Take(n)`|`.limit(n`|
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||`TakeWhile(predicate)`|`takewhile(predicate)`|
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||`Skip(n)`|`array[n:]`|
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||`SkipWhile(predicate)`|`dropwhile(predicate, sequence)`|
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|**Ordering**|`OrderBy`|`sorted()`|
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||`OrderBy(lambda)`|`sorted(lambda)`||
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||`OrderByDescending`|`sorted(Comparator.comparing(lamda, Comparator.reverseOrder()))`|
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||`OrderByDescending(lambda)`|`sorted(Comparator.comparing(lamda, Comparator.reverseOrder()))`|
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||`ThenBy`|`sorted(Comparator).comparing(lambda).thenComparing(lambda));`|
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||`ThenByDescending`|`sorted(Comparator).comparing(lambda).thenComparing(lambda), Comparator.reverseOrder()))`|
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||`Reverse`|`collect(Collectors.toCollection(LinkedList::new)).descendingIterator();`|
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|**Grouping**|`GroupBy`|`.collect(Collectors.groupingBy(lamnda, Collectors.toList()));`|
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|**Sets**|`Distinct`|`distinct`|
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||`Union`|`Stream.Concat(stream1, stream2).distinct()`||
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||`Interect`|`Arrays.stream(numbersA).filter(a -> Arrays.stream(numbersB).anyMatch(b -> b == a));`||
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||`Except`|`difference`||
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|**Conversion**|`ToArray`|`list`||
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||`ToList`|`list`||
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||`ToDictionary`|`{key:value for (key,value) in sequence}`|or use `dict` in conjuction with `zip`|
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||`Union`|`Stream.Concat(stream1, stream2).distinct()`|
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||`Interect`|`Arrays.stream(numbersA).filter(a -> Arrays.stream(numbersB).anyMatch(b -> b == a));`|
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||`Except`|`Arrays.stream(numbersA).filter(a -> Arrays.stream(numbersB).nonMatch(b -> b == a));`|
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|**Conversion**|`ToArray`|`list`|
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||`ToList`|`list`|
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||`ToDictionary`|`{key:value for (key,value) in sequence}`|or use `dict` in conjuction with `zip`
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||`OfType`|`'filter` using `isinstance` as predicate|
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|**Element**|`First`|`next`||
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||`First(lambda)`|`next(list)`|`next(filter(lambda)`|
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||`FirstOrDefault`|`next(list)`|`next(filter(lambda), default)`|
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||`ElementAt`|`list[0]`||
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|**Element**|`First`|`next`|
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||`First(lambda)`|`next(list)`|
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||`FirstOrDefault`|`next(list)`|
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||`ElementAt`|`list[0]`|
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|**Generation**|`Enumerable.Range`|range|
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||`Enumerable.Repeat`|`[x] * n` <br/> *or* <br /> `repeat(x, n)`|`from itertools import repeat`|
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|**Quantifiers**|`Any`|`any`||
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||`All`|`all`||
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|**Aggregate**|`Count`|`len` ||
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||`Count(lamda)`|`sum(1, iterator)`||
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||`Sum`|`sum`||
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||`Min`|`min`||
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||`Max`|`max`||
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||`Avg`||Custom calculation using `sum` / `len`|
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||`Sum(lambda)`|`sum(iterator)`||
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||`Min(lambda)`|`min(iterator)`||
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||`Max(lambda)`|`max(iterator)`||
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||`Avg(lambda)`||Custom calculation using <br /> `sum(iterator)` / `len`|
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||`Aggregate`|`reduce(lambda, sequence)`|`from functools import reduce`|
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||`Aggregate(seed, lamda)`|`reduce(lambsa,seed,sequence)`|`from functools import reduce`|
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|**Miscellaneous**|`Concat(IEnumerable)`|`list1 + list2`||
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||`SequenceEqual(IEnumerable)`|`list1==list2`||
51+
||`Enumerable.Repeat`|`[x] * n` <br/> *or* <br /> `repeat(x, n)`|
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|**Quantifiers**|`Any`|`any`|
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||`All`|`all`|
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|**Aggregate**|`Count`|`len` |
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||`Count(lamda)`|`sum(1, iterator)`|
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||`Sum`|`sum`|
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||`Min`|`min`|
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||`Max`|`max`|
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||`Avg`|||
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||`Sum(lambda)`|`sum(iterator)`|
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||`Min(lambda)`|`min(iterator)`|
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||`Max(lambda)`|`max(iterator)`|
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||`Avg(lambda)`|
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||`Aggregate`|`reduce(lambda, sequence)`|
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||`Aggregate(seed, lamda)`|`reduce(lambsa,seed,sequence)`|
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|**Miscellaneous**|`Concat(IEnumerable)`|`list1 + list2`|
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||`SequenceEqual(IEnumerable)`|`list1==list2`|
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#### Source
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|Operation/Section|Java Source|C# Source|
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|-----------------|-------------|---------|
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|[Filter](#linq1-where---simple-1)|[LinqFilters.java](/src/java/LinqSamples101/src/main/java/linq/LinqFilters.java)|[linq-restrictions/Program.cs](src/csharp/linq-restrictions/Program.cs)|
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|[Projection](#linq---projection-operators)|[LinqProjections.java](/src/java/LinqSamples101/src/main/java/linq/LinqProjections.java)|[linq-projections/Program.cs](src/csharp/linq-projections/Program.cs)|
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|[Partitioning](#linq---partitioning-operators)|[LinqPartitions.java](/src/java/LinqSamples101/src/main/java/linq/LinqPartitions.java)|[linq-partitioning/Program.cs](src/csharp/linq-partitioning/Program.cs)|
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|[Ordering](#linq---ordering-operators)|[linq-ordering.py](src/python/linq-ordering.py)|[linq-ordering/Program.cs](src/csharp/linq-ordering/Program.cs)|
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|[Grouping](#linq---grouping-operators)|[linq-grouping.py](src/python/linq-grouping.py)|[linq-grouping/Program.cs](src/csharp/linq-grouping/Program.cs)|
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|[Set](#linq---set-operators)|[linq-setoperators.py](src/python/set-operators.py)|[linq-sets/Program.cs](src/csharp/linq-sets/Program.cs)|
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|[Ordering](#linq---ordering-operators)|[LinqOrdering.java](/src/java/LinqSamples101/src/main/java/linq/LinqOrdering.java)|[linq-ordering/Program.cs](src/csharp/linq-ordering/Program.cs)|
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|[Grouping](#linq---grouping-operators)|[LinqGrouping.java](/src/java/LinqSamples101/src/main/java/linq/LinqGrouping.java)|[linq-grouping/Program.cs](src/csharp/linq-grouping/Program.cs)|
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|[Set](#linq---set-operators)|[LinqSets.java](/src/java/LinqSamples101/src/main/java/linq/LinqSets.java)|[linq-sets/Program.cs](src/csharp/linq-sets/Program.cs)|
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|[Conversion](#linq---conversion-operators)|[linq-conversion.py](src/python/linq-conversion.py)|[linq-conversion/Program.cs](src/csharp/linq-conversion/Program.cs)|
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|[Element](#linq---element-operators)|[linq-element.py](src/python/linq-element.py)|[linq-element/Program.cs](src/csharp/linq-element/Program.cs)|
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|[Generation](#linq---generation-operators)|[generationon.py](src/python/linq-generation.py)|[linq-generation/Program.cs](src/csharp/linq-generation/Program.cs)|

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