Module:FunList/Sandbox/doc

Functions

new

---@param nextFunc fun(context: any, index: any):any, any
---@param index any
---@param contextFactory fun(): any
---@return Enumerator3
function Enumerator3.new(nextFunc, index, contextFactory)

create

---@param obj any
---@return Enumerator3
function Enumerator3.create(obj)

ipairs

---@return fun():table
function Enumerator3:ipairs()

where

---Filters a sequence of values based on a predicate.
---@param predicate fun(item: any, index: any): boolean
---@return Enumerator3
function Enumerator3:where(predicate)

map

---Projects each element of a sequence into a new form.
---@param selector fun(item: any, position: integer): any
---@return Enumerator3
function Enumerator3:map(selector)

flatMap

---Projects each element of a sequence and flattens the resulting sequences into one sequence.
---@param selector fun(item: any, position: integer): table
---@return Enumerator3
function Enumerator3:flatMap(selector)

concat

---Concatenates two sequences.
---@param second table
---@return Enumerator3
function Enumerator3:concat(second)

append

---Appends a value to the end of the sequence.
---@param item any
---@param index? any
---@return Enumerator3
function Enumerator3:append(item, index)

prepend

---Prepends a value to the start of the sequence.
---@param item any
---@param index? any
---@return Enumerator3
function Enumerator3:prepend(item, index)

unique

---Returns unique (distinct) elements from a sequence according to a specified key selector function.
---@param keySelector? fun(current: any, index: any): any
---@return Enumerator3 
function Enumerator3:unique(keySelector)

difference

---Produces the set difference of two sequences according to a specified key selector function.
---@param second table
---@param keySelector? fun(current: any, index: any): any
---@return Enumerator3
function Enumerator3:difference(second, keySelector)

union

---Produces the set union of two sequences according to a specified key selector function.
---@param second table
---@param keySelector? fun(current: any, index: any): any
---@return Enumerator3
function Enumerator3:union(second, keySelector)

intersect

---Produces the set intersection of two sequences according to a specified key selector function.
---@param second table
---@param keySelector? fun(current: any, index: any): any
function Enumerator3:intersect(second, keySelector)

zip

---Applies a specified function to the corresponding elements of two sequences, producing a sequence of the results.
---@param second table
---@param resultSelector? fun(itema: any, itemb: any): any
---@return Enumerator3
function Enumerator3:zip(second, resultSelector)

groupBy

---Groups the elements of a sequence.
---@param keySelector fun(param: any): any
---@param elementSelector? fun(param: any): any
---@return Enumerator3
function Enumerator3:groupBy(keySelector, elementSelector)

groupByResult

---Groups the elements of a sequence.
---@param keySelector fun(param: any): any
---@param elementSelector? fun(param: any): any
---@param resultSelector fun(key: any, elements: any): any
---@return Enumerator3
function Enumerator3:groupByResult(keySelector, elementSelector, resultSelector)

sort

---Boilerplate function to setup various sorting Enumerator3
---@param self Enumerator3
---@param isDecending boolean
---@param selector? fun(current: any): any
---@return Enumerator3
local function getSorter(self, isDecending, selector)

sortDescending

function Enumerator3:sortDescending()

sortBy

function Enumerator3:sortBy(selector)

sortByDescending

function Enumerator3:sortByDescending(selector)

thenBy

function Enumerator3:thenBy(selector)

thenByDecending

function Enumerator3:thenByDecending(selector)

indexOf

---Determines the index of the first occurrence of a specified item.
---@param self Enumerator3
---@param item any
---@param comparer? fun(a: any, b: any): boolean
---@return integer
function Enumerator3.indexOf(self, item, comparer)

contains

---Determines whether the sequence contains the provided item according to an equality comparer.
---@param self table
---@param item any
---@param comparer? fun(a: any, b: any): boolean
---@return boolean
function Enumerator3.contains(self, item, comparer)

sequenceEquals

---Determines whether two sequences are equal according to an equality comparer.
---@param self table
---@param other table
---@param comparer? fun(a: any, b: any): boolean
---@return boolean
function Enumerator3.sequenceEquals(self, other, comparer)

firstOrDefault

---Returns the first item in the sequence, or a default value if there are no items in the sequence.
---@param self table
---@param predicate? fun(value: any, key: any): boolean
---@param defaultValue? any
---@return any
function Enumerator3.firstOrDefault(self, predicate, defaultValue)

first

---Returns the first item in the sequence, or an error if there are no items in the sequence.
---@param self table
---@param predicate? fun(value: any, key: any): boolean
---@return any
function Enumerator3:first(predicate)

lastOrDefault

---Returns the last item in the sequence, or a default value if there are no items in the sequence.
---@param self table
---@param predicate? fun(value: any, key: any): boolean
---@param defaultValue? any
---@return any
function Enumerator3:lastOrDefault(predicate, defaultValue)

last

---Returns the last item in the sequence, or an error if there are no items in the sequence.
---@param self table
---@param predicate? fun(value: any, key: any): boolean
---@return any
function Enumerator3:last(predicate)

count

---Returns the length of this collection.
---@param self table
---@return integer
function Enumerator3:count()

countBy

---Returns the number of elements in a sequence that match a predicate.
---@param self Enumerator3
---@param predicate fun(value: any, key: any): any
---@return integer
function Enumerator3:countBy(predicate)

all

---Determines whether all elements of a sequence satisfy a condition.
---@param self Enumerator3
---@param predicate fun(current: any, index: any): boolean
---@return boolean
function Enumerator3:all(predicate)

any

---Determines whether any element of a sequence exists or satisfies a condition.
---@param self Enumerator3
---@param predicate? fun(current: any, index: any): boolean
---@return boolean
function Enumerator3:any(predicate)

foreach

---Iterates over the sequence, applying a specified function to each element.
---@param self Enumerator3
---@param func fun(current: any): any
---@return nil
function Enumerator3:foreach(func)

aggregate

---Applies an accumulator function over a sequence. The specified seed value is used as the initial accumulator value, and the specified function is used to select the result value.
---@param self table
---@param func fun(accumulate: any, next: any): any
---@param seed? any
---@param resultSelector? fun(result: any): any
---@return any
function Enumerator3:aggregate(func, seed, resultSelector)

max

---Returns the maximum value in a sequence of values.
---@param self Enumerator3
---@return number
function Enumerator3:max()

maxBy

---Returns the item with the highest value in a sequence.
---@param self Enumerator3
---@param selector fun(item: any, index: any): number
---@return unknown
function Enumerator3:maxBy(selector)

min

---Returns the minimum value in a sequence of values.
---@param self Enumerator3
---@return number
function Enumerator3:min()

minBy

---Returns the item with the lowest value in a sequence.
---@param self Enumerator3
---@param selector fun(item: any, index: any): number
---@return unknown
function Enumerator3:minBy(selector)

sum

---Returns the sum value of a sequence of values.
---@param self Enumerator3
---@return number
function Enumerator3:sum()

toSet

---Creates a set from a table|Enumerator3 with a specified key for uniqueness.
---@param self table
---@param keySelector? fun(current: any, index: any): any
---@return table
function Enumerator3:toSet(keySelector)

toTable

---Creates an array from a table|Enumerator3
---@param self table
---@return table
function Enumerator3:toTable()

toLookup

---Creates a lookup from a table|Enumerator3
---This is a { key, { elements } } structure
---@param self table
---@param keySelector fun(value: any, index: any): any
---@param elementSelector? fun(value: any, index: any): any
---@return table
function Enumerator3:toLookup(keySelector, elementSelector)

toDictionary

---Creates a dictionary (key, value) structure based on a keyselector and an elementselector
---@param self Enumerator3
---@param keySelector? fun(value: any, key: any): any
---@param elementSelector? fun(value: any, key: any): any
---@return table
function Enumerator3:toDictionary(keySelector, elementSelector)

deepCopy

---Creates a deep copy of the provided object.
---@param self any
---@return any
function Enumerator3:deepCopy()

Function aliases

These aliases behave the same as the functions listed above. They only have a different name.

select

--- Alias for [[#map|Enumerator3.map]].
Enumerator3.select = Enumerator3.map

selectMany

--- Alias for [[#flatMap|Enumerator3.flatMap]].
Enumerator3.selectMany = Enumerator3.flatMap

distinct

--- Alias for [[#unique|Enumerator3.unique]].
Enumerator3.distinct = Enumerator3.unique

except

--- Alias for [[#difference|Enumerator3.difference]].
Enumerator3.except = Enumerator3.difference

order

--- Alias for [[#sort|Enumerator3.sort]].
Enumerator3.order = Enumerator3.sort

orderDecending

--- Alias for [[#sortDescending|Enumerator3.sortDescending]].
Enumerator3.orderDecending = Enumerator3.sortDescending

orderBy

--- Alias for [[#sortBy|Enumerator3.sortBy]].
Enumerator3.orderBy = Enumerator3.sortBy

orderByDecending

--- Alias for [[#sortByDescending|Enumerator3.sortByDescending]].
Enumerator3.orderByDecending = Enumerator3.sortByDescending

each

--- Alias for [[#foreach|Enumerator3.foreach]].
Enumerator3.each = Enumerator3.foreach

for_each

--- Alias for [[#foreach|Enumerator3.foreach]].
Enumerator3.for_each = Enumerator3.foreach

length

--- Alias for [[#count|Enumerator3.count]].
Enumerator3.length = Enumerator3.count

lengthBy

--- Alias for [[#countBy|Enumerator3.countBy]].
Enumerator3.lengthBy = Enumerator3.countBy

has

--- Alias for [[#contains|Enumerator3.contains]].
Enumerator3.has = Enumerator3.contains

fold

--- Alias for [[#aggregate|Enumerator3.aggregate]].
Enumerator3.fold = Enumerator3.aggregate

reduce

--- Alias for [[#aggregate|Enumerator3.aggregate]].
Enumerator3.reduce = Enumerator3.aggregate