init component
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Robin COuret
366
node_modules/fp-ts/lib/IO.js
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366
node_modules/fp-ts/lib/IO.js
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"use strict";
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var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
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if (k2 === undefined) k2 = k;
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var desc = Object.getOwnPropertyDescriptor(m, k);
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if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
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desc = { enumerable: true, get: function() { return m[k]; } };
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}
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Object.defineProperty(o, k2, desc);
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}) : (function(o, m, k, k2) {
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if (k2 === undefined) k2 = k;
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o[k2] = m[k];
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}));
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var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
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Object.defineProperty(o, "default", { enumerable: true, value: v });
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}) : function(o, v) {
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o["default"] = v;
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});
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var __importStar = (this && this.__importStar) || function (mod) {
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if (mod && mod.__esModule) return mod;
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var result = {};
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if (mod != null) for (var k in mod) if (k !== "default" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
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__setModuleDefault(result, mod);
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return result;
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};
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Object.defineProperty(exports, "__esModule", { value: true });
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exports.getMonoid = exports.getSemigroup = exports.io = exports.chainFirst = exports.chain = exports.sequenceArray = exports.traverseArray = exports.traverseArrayWithIndex = exports.traverseReadonlyArrayWithIndex = exports.traverseReadonlyNonEmptyArrayWithIndex = exports.ApT = exports.apS = exports.bind = exports.let = exports.bindTo = exports.Do = exports.FromIO = exports.ChainRec = exports.MonadIO = exports.fromIO = exports.tap = exports.Monad = exports.Chain = exports.Applicative = exports.apSecond = exports.apFirst = exports.Apply = exports.Pointed = exports.flap = exports.asUnit = exports.as = exports.Functor = exports.URI = exports.flatten = exports.flatMap = exports.of = exports.ap = exports.map = void 0;
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/**
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* ```ts
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* interface IO<A> {
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* (): A
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* }
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* ```
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*
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* `IO<A>` represents a non-deterministic synchronous computation that can cause side effects, yields a value of
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* type `A` and **never fails**.
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*
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* If you want to represent a synchronous computation that may fail, please see `IOEither`.
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* If you want to represent a synchronous computation that may yield nothing, please see `IOOption`.
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*
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* @since 2.0.0
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*/
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var Applicative_1 = require("./Applicative");
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var Apply_1 = require("./Apply");
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var chainable = __importStar(require("./Chain"));
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var function_1 = require("./function");
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var Functor_1 = require("./Functor");
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var _ = __importStar(require("./internal"));
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var _map = function (ma, f) { return function () { return f(ma()); }; };
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var _ap = function (mab, ma) { return function () { return mab()(ma()); }; };
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var _chainRec = function (a, f) { return function () {
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var e = f(a)();
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while (e._tag === 'Left') {
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e = f(e.left)();
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}
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return e.right;
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}; };
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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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var map = function (f) { return function (fa) { return _map(fa, f); }; };
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exports.map = map;
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/**
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* @since 2.0.0
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*/
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var ap = function (fa) { return function (fab) { return _ap(fab, fa); }; };
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exports.ap = ap;
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/**
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* @category constructors
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* @since 2.0.0
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*/
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exports.of = function_1.constant;
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/**
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* @category sequencing
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* @since 2.14.0
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*/
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exports.flatMap = (0, function_1.dual)(2, function (ma, f) {
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return function () {
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return f(ma())();
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};
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});
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/**
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* @category sequencing
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* @since 2.0.0
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*/
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exports.flatten = (0, exports.flatMap)(function_1.identity);
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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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exports.URI = 'IO';
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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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exports.Functor = {
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URI: exports.URI,
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map: _map
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};
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/**
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* Maps the value to the specified constant value.
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*
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* @category mapping
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* @since 2.16.0
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*/
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exports.as = (0, function_1.dual)(2, (0, Functor_1.as)(exports.Functor));
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/**
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* Maps the value to the void constant value.
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*
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* @category mapping
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* @since 2.16.0
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*/
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exports.asUnit = (0, Functor_1.asUnit)(exports.Functor);
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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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exports.flap = (0, Functor_1.flap)(exports.Functor);
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/**
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* @category instances
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* @since 2.10.0
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*/
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exports.Pointed = {
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URI: exports.URI,
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of: exports.of
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};
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/**
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* @category instances
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* @since 2.10.0
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*/
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exports.Apply = {
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URI: exports.URI,
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map: _map,
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ap: _ap
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};
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/**
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* Combine two effectful actions, keeping only the result of the first.
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*
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* @since 2.0.0
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*/
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exports.apFirst = (0, Apply_1.apFirst)(exports.Apply);
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/**
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* Combine two effectful actions, keeping only the result of the second.
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*
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* @since 2.0.0
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*/
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exports.apSecond = (0, Apply_1.apSecond)(exports.Apply);
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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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exports.Applicative = {
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URI: exports.URI,
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map: _map,
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ap: _ap,
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of: exports.of
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};
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/**
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* @category instances
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* @since 2.10.0
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*/
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exports.Chain = {
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URI: exports.URI,
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map: _map,
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ap: _ap,
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chain: exports.flatMap
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};
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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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exports.Monad = {
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URI: exports.URI,
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map: _map,
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ap: _ap,
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of: exports.of,
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chain: exports.flatMap
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};
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/**
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* Composes computations in sequence, using the return value of one computation to determine the next computation and
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* keeping only the result of the first.
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*
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* @category combinators
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* @since 2.15.0
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*/
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exports.tap = (0, function_1.dual)(2, chainable.tap(exports.Chain));
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/**
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* @category zone of death
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* @since 2.7.0
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* @deprecated
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*/
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exports.fromIO = function_1.identity;
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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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exports.MonadIO = {
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URI: exports.URI,
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map: _map,
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ap: _ap,
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of: exports.of,
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chain: exports.flatMap,
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fromIO: exports.fromIO
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};
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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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exports.ChainRec = {
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URI: exports.URI,
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map: _map,
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ap: _ap,
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chain: exports.flatMap,
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chainRec: _chainRec
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};
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/**
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* @category instances
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* @since 2.10.0
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*/
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exports.FromIO = {
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URI: exports.URI,
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fromIO: function_1.identity
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};
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// -------------------------------------------------------------------------------------
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// do notation
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// -------------------------------------------------------------------------------------
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/**
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* @category do notation
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* @since 2.9.0
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*/
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exports.Do = (0, exports.of)(_.emptyRecord);
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/**
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* @category do notation
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* @since 2.8.0
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*/
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exports.bindTo = (0, Functor_1.bindTo)(exports.Functor);
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var let_ = /*#__PURE__*/ (0, Functor_1.let)(exports.Functor);
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exports.let = let_;
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/**
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* @category do notation
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* @since 2.8.0
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*/
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exports.bind = chainable.bind(exports.Chain);
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/**
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* @category do notation
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* @since 2.8.0
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*/
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exports.apS = (0, Apply_1.apS)(exports.Apply);
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/**
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* @since 2.11.0
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*/
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exports.ApT = (0, exports.of)(_.emptyReadonlyArray);
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// -------------------------------------------------------------------------------------
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// array utils
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// -------------------------------------------------------------------------------------
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/**
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* Equivalent to `ReadonlyNonEmptyArray#traverseWithIndex(Applicative)`.
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*
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* @category traversing
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* @since 2.11.0
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*/
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var traverseReadonlyNonEmptyArrayWithIndex = function (f) {
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return function (as) {
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return function () {
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var out = [f(0, _.head(as))()];
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for (var i = 1; i < as.length; i++) {
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out.push(f(i, as[i])());
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}
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return out;
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};
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};
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};
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exports.traverseReadonlyNonEmptyArrayWithIndex = traverseReadonlyNonEmptyArrayWithIndex;
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/**
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* Equivalent to `ReadonlyArray#traverseWithIndex(Applicative)`.
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*
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* @category traversing
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* @since 2.11.0
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*/
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var traverseReadonlyArrayWithIndex = function (f) {
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var g = (0, exports.traverseReadonlyNonEmptyArrayWithIndex)(f);
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return function (as) { return (_.isNonEmpty(as) ? g(as) : exports.ApT); };
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};
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exports.traverseReadonlyArrayWithIndex = traverseReadonlyArrayWithIndex;
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/**
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* Equivalent to `ReadonlyArray#traverseWithIndex(Applicative)`.
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*
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* @category traversing
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* @since 2.9.0
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*/
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exports.traverseArrayWithIndex = exports.traverseReadonlyArrayWithIndex;
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/**
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* Equivalent to `ReadonlyArray#traverse(Applicative)`.
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*
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* @category traversing
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* @since 2.9.0
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*/
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var traverseArray = function (f) {
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return (0, exports.traverseReadonlyArrayWithIndex)(function (_, a) { return f(a); });
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};
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exports.traverseArray = traverseArray;
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/**
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* Equivalent to `ReadonlyArray#sequence(Applicative)`.
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*
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* @category traversing
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* @since 2.9.0
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*/
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exports.sequenceArray =
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/*#__PURE__*/ (0, exports.traverseArray)(function_1.identity);
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// -------------------------------------------------------------------------------------
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// legacy
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// -------------------------------------------------------------------------------------
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/**
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* Alias of `flatMap`.
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*
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* @category legacy
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* @since 2.0.0
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*/
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exports.chain = exports.flatMap;
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/**
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* Alias of `tap`.
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*
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* @category legacy
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* @since 2.0.0
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*/
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exports.chainFirst = exports.tap;
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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 `Functor` instance, pass `IO.Functor` instead of `IO.io`
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* (where `IO` is from `import IO from 'fp-ts/IO'`)
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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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exports.io = {
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URI: exports.URI,
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map: _map,
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of: exports.of,
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ap: _ap,
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chain: exports.flatMap,
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fromIO: exports.fromIO,
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chainRec: _chainRec
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};
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/**
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* Use [`getApplySemigroup`](./Apply.ts.html#getapplysemigroup) instead.
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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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exports.getSemigroup = (0, Apply_1.getApplySemigroup)(exports.Apply);
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/**
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* Use [`getApplicativeMonoid`](./Applicative.ts.html#getapplicativemonoid) instead.
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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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exports.getMonoid = (0, Applicative_1.getApplicativeMonoid)(exports.Applicative);
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