Transformations

TLDR list of Transformations

• Is start of a new chain
• Immediate Execution
• Partially Deferred Execution
• Fully Deferred Execution
• Eager Evaluation
• Available in the ILinqIterable wrapper
• Available as raw function

Transformation	Brief Description
empty	Returns an empty Iterable
filter	Returns a new iterable
flatMap
from
fromRange	Returns an Iterable of numbers (positive and/or negative) progressing from start up to, but not including, end.
map
memoize
materialize	Triggers the operations chain and store it in a new Iterable. It returns an ILinqIterable to allow to create a brand new operations chain. Helpful to boost performance.
repeat	Returns an Iterable which will repeats the given value n times.
tap
tapChain
tapChainCreation

empty

WrapperRaw Function

import * as IterableLinq from 'iterable-linq-utility'

IterableLinq
    .empty()
    .collectToArray();
// []

import { Functions } from 'iterable-linq-utility';

Array.from(Functions.empty());
// []

filter

WrapperRaw Function

import * as IterableLinq from 'iterable-linq-utility'

IterableLinq
    .from([1,2,3,4])
    .filter( v => v % 2 === 0)
    .collectToArray();
// [2,4]

import { Functions } from 'iterable-linq-utility';

Array.from(Functions.filter([1,2,3,4], v => v % 2 === 0));
// [2,4]

flatMap

from

fromRange

map

WrapperRaw Function

import * as IterableLinq from 'iterable-linq-utility'

IterableLinq
    .from([1,2,3,4])
    .map( v => v * 10 )
    .collectToArray();
// [10,20,30,40]

import { Functions } from 'iterable-linq-utility';

Array.from(Functions.map([1,2,3,4], v => v * 10));
// [10,20,30,40]

memoize

materialize

WrapperRaw Function

import * as IterableLinq from 'iterable-linq-utility'

IterableLinq
    .from([1,2,3,4])
    .materilize()
    .collectToArray();
// [1,2,3,4]

import { Functions } from 'iterable-linq-utility';

Array.from(Functions.materialize([1,2,3,4]));
// [1,2,3,4]

repeat

WrapperRaw Function

import * as IterableLinq from 'iterable-linq-utility'

IterableLinq
    .repeat(5,3)
    .collectToArray();
// [5,5,5]

import { Functions } from 'iterable-linq-utility';

Array.from(Functions.repeat(5, 3));
// [5,5,5]

tap

tapChain

tapChainCreation

---

Last update: March 22, 2023
Created: March 22, 2023