39 lines
1.1 KiB
JavaScript
39 lines
1.1 KiB
JavaScript
"use strict";
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Object.defineProperty(exports, "__esModule", {
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value: true
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});
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exports.createReplacer = void 0;
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var _factory = require("../utils/factory.js");
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const name = 'replacer';
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const dependencies = [];
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const createReplacer = exports.createReplacer = /* #__PURE__ */(0, _factory.factory)(name, dependencies, () => {
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/**
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* Stringify data types into their JSON representation.
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* Most data types can be serialized using their `.toJSON` method,
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* but not all, for example the number `Infinity`. For these cases you have
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* to use the replacer. Example usage:
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*
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* JSON.stringify([2, Infinity], math.replacer)
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*
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* @param {string} key
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* @param {*} value
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* @returns {*} Returns the replaced object
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*/
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return function replacer(key, value) {
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// the numeric values Infinitiy, -Infinity, and NaN cannot be serialized to JSON
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if (typeof value === 'number' && (!isFinite(value) || isNaN(value))) {
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return {
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mathjs: 'number',
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value: String(value)
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};
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}
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if (typeof value === 'bigint') {
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return {
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mathjs: 'bigint',
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value: String(value)
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};
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}
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return value;
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};
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}); |