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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,15 +1,35 @@ | ||
| import spread, { spreadK, spreadKV, spreadV, } from './spread'; | ||
| // requires [cast](cast.html), and [spread](spread.html) | ||
| import { asMap, } from './cast'; | ||
| import spread, { spreadK, spreadKV, spreadV, } from './spread'; | ||
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| // **get** `:: iter[{k:v}] -> k -> v` | ||
| // retrieves a value stored at a key from a collection | ||
| export const get = c => k => asMap(c).get(k); | ||
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| // **fromIndex** `:: [a] -> number -> a` | ||
| // returns the value stored at an array position | ||
| export const fromIndex = (c = new Set) => i => spread(c).slice(i, i + 1).shift(); | ||
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| // **first** `:: iter[a] -> a` | ||
| // returns the first element of an iterable | ||
| export const first = (c = []) => spread(c).shift(); | ||
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| // **last** `:: iter[a] -> a` | ||
| // returns the last element of an iterable | ||
| export const last = (c = []) => spread(c).pop(); | ||
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| // **firstK** `:: iter[{k:v}] -> k` | ||
| // returns the first key of an iterable | ||
| export const firstK = (c = []) => first(spreadK(c)); | ||
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| // **lastK** `:: iter[{k:v}] -> k` | ||
| // returns the last key of an iterable | ||
| export const lastK = (c = []) => last(spreadK(c)); | ||
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| // **firstV** `:: iter[a] -> a` | ||
| // returns the first value of an iterable | ||
| export const firstV = (c = []) => first(spreadV(c)); | ||
| export const lastV = (c = []) => last(spreadV(c)); | ||
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| export const fromIndex = (c = new Set) => i => spread(c).slice(i, i + 1).shift(); | ||
| // **lastV** `:: iter[a] -> a -> [a]` | ||
| // returns the last value of an iterable | ||
| export const lastV = (c = []) => last(spreadV(c)); |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,7 +1,24 @@ | ||
| // requires [spread](spread.html) | ||
| import spread from './spread'; | ||
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| // **map** `:: iter[a] -> (a->b) -> [b]` | ||
| // returns an array of the return values of a | ||
| // function called on each element of an iterable | ||
| export const map = coll => fn => spread(coll).map(fn); | ||
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| // **reduce** `:: iter[a] -> ((a->b), b) -> b` | ||
| // returns the accumulated value of a function | ||
| // called on each element of an iterable | ||
| export const reduce = coll => (fn, init) => spread(coll).reduce(fn, init); | ||
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| // **filter** `:: iter[a] -> (a->bool) -> [a]` | ||
| // returns the iterable's values which return true for a given function | ||
| export const filter = coll => fn => spread(coll).filter(fn); | ||
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| // **every** `:: iter[a] -> (a->bool) -> bool` | ||
| // checks if every element of an iterable returns true for a given function | ||
| export const every = coll => fn => spread(coll).every(fn); | ||
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| // **some** `:: iter[a] -> (a->b) -> [b]` | ||
| // checks if any element of an iterable returns true for a given function | ||
| export const some = coll => fn => spread(coll).some(fn); |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,14 +1,14 @@ | ||
| // requires [spread](spread.html) | ||
| import spread, { spreadKV, } from './spread'; | ||
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| // **asArray** `:: iter -> array` | ||
| // **asArray** `:: iter[a] -> [a]` | ||
| // returns an array of the collections default iterator | ||
| export const asArray = c => spread(c); | ||
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| // **asSet** `:: iter -> set` | ||
| // **asSet** `:: iter[a] -> Set[a]` | ||
| // returns an array of the collections default iterator | ||
| export const asSet = c => new Set(spread(c)); | ||
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| // **asMap** `:: iter -> map` | ||
| // **asMap** `:: iter[a] -> Map[a]` | ||
| // returns an array of the collections default iterator | ||
| export const asMap = c => new Map(spreadKV(c)); |
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