import { factory } from '../utils/factory.js'

const name = 'replacer'

const dependencies = []

export const createReplacer = /* #__PURE__ */ factory(name, dependencies, () => {

/**

* Stringify data types into their JSON representation.

* Most data types can be serialized using their `.toJSON` method,

* but not all, for example the number `Infinity`. For these cases you have

* to use the replacer. Example usage:

*

* JSON.stringify([2, Infinity], math.replacer)

*

* @param {string} key

* @param {*} value

* @returns {*} Returns the replaced object

*/

return function replacer (key, value) {

// the numeric values Infinitiy, -Infinity, and NaN cannot be serialized to JSON

if (typeof value === 'number' && (!isFinite(value) || isNaN(value))) {

return {

mathjs: 'number',

value: String(value)

}

}

return value

}

})