init component
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101
node_modules/fp-ts/es6/Store.js
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101
node_modules/fp-ts/es6/Store.js
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import { identity, pipe } from './function';
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import { flap as flap_ } from './Functor';
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/**
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* Reposition the focus at the specified position
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*
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* @since 2.0.0
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*/
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export function seek(s) {
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return function (wa) { return ({ peek: wa.peek, pos: s }); };
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}
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/**
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* Reposition the focus at the specified position, which depends on the current position
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*
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* @since 2.0.0
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*/
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export function seeks(f) {
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return function (wa) { return ({ peek: wa.peek, pos: f(wa.pos) }); };
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}
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/**
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* Extract a value from a position which depends on the current position
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*
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* @since 2.0.0
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*/
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export function peeks(f) {
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return function (wa) { return wa.peek(f(wa.pos)); };
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}
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export function experiment(F) {
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return function (f) { return function (wa) { return F.map(f(wa.pos), function (s) { return wa.peek(s); }); }; };
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}
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/* istanbul ignore next */
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var _map = function (fa, f) { return pipe(fa, map(f)); };
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/* istanbul ignore next */
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var _extend = function (wa, f) { return pipe(wa, extend(f)); };
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/**
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* @since 2.0.0
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*/
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export var extend = function (f) { return function (wa) { return ({
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peek: function (s) { return f({ peek: wa.peek, pos: s }); },
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pos: wa.pos
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}); }; };
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/**
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* @category Extract
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* @since 2.6.2
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*/
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export var extract = function (wa) { return wa.peek(wa.pos); };
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/**
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* @since 2.0.0
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*/
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export var duplicate = /*#__PURE__*/ extend(identity);
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/**
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* `map` can be used to turn functions `(a: A) => B` into functions `(fa: F<A>) => F<B>` whose argument and return types
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* use the type constructor `F` to represent some computational context.
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*
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* @category mapping
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* @since 2.0.0
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*/
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export var map = function (f) { return function (fa) { return ({
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peek: function (s) { return f(fa.peek(s)); },
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pos: fa.pos
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}); }; };
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/**
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* @category type lambdas
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* @since 2.0.0
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*/
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export var URI = 'Store';
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/**
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* @category instances
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* @since 2.7.0
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*/
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export var Functor = {
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URI: URI,
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map: _map
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};
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/**
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* @category mapping
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* @since 2.10.0
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*/
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export var flap = /*#__PURE__*/ flap_(Functor);
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/**
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* @category instances
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* @since 2.7.0
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*/
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export var Comonad = {
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URI: URI,
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map: _map,
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extend: _extend,
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extract: extract
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};
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// -------------------------------------------------------------------------------------
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// deprecated
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// -------------------------------------------------------------------------------------
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/**
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* This instance is deprecated, use small, specific instances instead.
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* For example if a function needs a `Comonad` instance, pass `S.Comonad` instead of `S.store`
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* (where `S` is from `import S from 'fp-ts/Store'`)
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*
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* @category zone of death
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* @since 2.0.0
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* @deprecated
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*/
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export var store = Comonad;
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