199 lines
13 KiB
JavaScript
199 lines
13 KiB
JavaScript
/*---------------------------------------------------------------------------------------------
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* Copyright (c) Microsoft Corporation. All rights reserved.
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* Licensed under the MIT License. See License.txt in the project root for license information.
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*--------------------------------------------------------------------------------------------*/
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'use strict';
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Object.defineProperty(exports, "__esModule", { value: true });
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exports.countToArray = exports.count = exports.create = exports.validateConstraint = exports.validateConstraints = exports.areFunctions = exports.isFunction = exports.isEmptyObject = exports.isUndefinedOrNull = exports.isUndefined = exports.isBoolean = exports.isNumber = exports.isObject = exports.isStringArray = exports.isString = exports.isArray = exports.traverse = void 0;
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const _typeof = {
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number: 'number',
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string: 'string',
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undefined: 'undefined',
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object: 'object',
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function: 'function'
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};
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function traverse(o, ctx, fn) {
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for (const i in o) {
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fn.apply(ctx, [o, i, o[i]]);
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if (o[i] !== null && typeof (o[i]) === 'object') {
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traverse(o[i], ctx, fn);
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}
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}
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}
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exports.traverse = traverse;
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/**
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* @returns whether the provided parameter is a JavaScript Array or not.
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*/
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function isArray(array) {
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if (Array.isArray) {
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return Array.isArray(array);
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}
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if (array && typeof (array.length) === _typeof.number && array.constructor === Array) {
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return true;
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}
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return false;
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}
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exports.isArray = isArray;
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/**
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* @returns whether the provided parameter is a JavaScript String or not.
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*/
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function isString(str) {
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if (typeof (str) === _typeof.string || str instanceof String) {
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return true;
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}
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return false;
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}
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exports.isString = isString;
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/**
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* @returns whether the provided parameter is a JavaScript Array and each element in the array is a string.
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*/
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function isStringArray(value) {
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return isArray(value) && value.every(elem => isString(elem));
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}
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exports.isStringArray = isStringArray;
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/**
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*
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* @returns whether the provided parameter is of type `object` but **not**
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* `null`, an `array`, a `regexp`, nor a `date`.
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*/
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function isObject(obj) {
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// The method can't do a type cast since there are type (like strings) which
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// are subclasses of any put not positvely matched by the function. Hence type
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// narrowing results in wrong results.
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return typeof obj === _typeof.object
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&& obj !== null
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&& !Array.isArray(obj)
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&& !(obj instanceof RegExp)
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&& !(obj instanceof Date);
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}
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exports.isObject = isObject;
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/**
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* In **contrast** to just checking `typeof` this will return `false` for `NaN`.
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* @returns whether the provided parameter is a JavaScript Number or not.
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*/
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function isNumber(obj) {
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if ((typeof (obj) === _typeof.number || obj instanceof Number) && !isNaN(obj)) {
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return true;
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}
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return false;
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}
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exports.isNumber = isNumber;
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/**
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* @returns whether the provided parameter is a JavaScript Boolean or not.
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*/
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function isBoolean(obj) {
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return obj === true || obj === false;
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}
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exports.isBoolean = isBoolean;
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/**
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* @returns whether the provided parameter is undefined.
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*/
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function isUndefined(obj) {
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return typeof (obj) === _typeof.undefined;
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}
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exports.isUndefined = isUndefined;
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/**
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* @returns whether the provided parameter is undefined or null.
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*/
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function isUndefinedOrNull(obj) {
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return isUndefined(obj) || obj === null;
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}
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exports.isUndefinedOrNull = isUndefinedOrNull;
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const hasOwnProperty = Object.prototype.hasOwnProperty;
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/**
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* @returns whether the provided parameter is an empty JavaScript Object or not.
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*/
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function isEmptyObject(obj) {
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if (!isObject(obj)) {
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return false;
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}
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for (let key in obj) {
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if (hasOwnProperty.call(obj, key)) {
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return false;
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}
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}
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return true;
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}
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exports.isEmptyObject = isEmptyObject;
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/**
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* @returns whether the provided parameter is a JavaScript Function or not.
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*/
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function isFunction(obj) {
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return typeof obj === _typeof.function;
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}
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exports.isFunction = isFunction;
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/**
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* @returns whether the provided parameters is are JavaScript Function or not.
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*/
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function areFunctions(...objects) {
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return objects && objects.length > 0 && objects.every(isFunction);
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}
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exports.areFunctions = areFunctions;
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function validateConstraints(args, constraints) {
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const len = Math.min(args.length, constraints.length);
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for (let i = 0; i < len; i++) {
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validateConstraint(args[i], constraints[i]);
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}
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}
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exports.validateConstraints = validateConstraints;
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function validateConstraint(arg, constraint) {
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if (isString(constraint)) {
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if (typeof arg !== constraint) {
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throw new Error(`argument does not match constraint: typeof ${constraint}`);
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}
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}
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else if (isFunction(constraint)) {
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if (arg instanceof constraint) {
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return;
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}
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if (arg && arg.constructor === constraint) {
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return;
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}
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if (constraint.length === 1 && constraint.call(undefined, arg) === true) {
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return;
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}
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throw new Error(`argument does not match one of these constraints: arg instanceof constraint, arg.constructor === constraint, nor constraint(arg) === true`);
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}
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}
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exports.validateConstraint = validateConstraint;
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/**
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* Creates a new object of the provided class and will call the constructor with
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* any additional argument supplied.
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*/
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function create(ctor, ...args) {
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let obj = Object.create(ctor.prototype);
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ctor.apply(obj, args);
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return obj;
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}
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exports.create = create;
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function count(fromOrTo, toOrCallback, callback) {
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var from, to;
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if (isNumber(toOrCallback)) {
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from = fromOrTo;
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to = toOrCallback;
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}
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else {
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from = 0;
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to = fromOrTo;
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callback = toOrCallback;
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}
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var op = from <= to ? (i) => i + 1 : (i) => i - 1;
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var cmp = from <= to ? (a, b) => a < b : (a, b) => a > b;
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for (var i = from; cmp(i, to); i = op(i)) {
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callback(i);
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}
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}
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exports.count = count;
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function countToArray(fromOrTo, to) {
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var result = [];
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var fn = (i) => result.push(i);
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if (isUndefined(to)) {
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count(fromOrTo, fn);
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}
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else {
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count(fromOrTo, to, fn);
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}
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return result;
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}
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exports.countToArray = countToArray;
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//# 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