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json-fns.js
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json-fns.js
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;(function(root, factory) {
if (typeof define === 'function' && define.amd) {
define([], factory)
} else if (typeof exports === 'object') {
module.exports = factory()
} else {
root.JSONfns = factory()
}
})(this, function() {
const ARROWFN_PREFIX = '__ARFn__'
const REGEXP_PREFIX = '__RGXP__'
const replacer = (key, value) => {
const fnBody = value !== null && value !== undefined ? value.toString() : ''
if (value instanceof Function || typeof value === 'function') {
if (fnBody.indexOf('function') !== 0) {
return ARROWFN_PREFIX + fnBody
}
return fnBody
}
if (value instanceof RegExp) {
return REGEXP_PREFIX + fnBody
}
return value
}
const reviver = (key, value) => {
if (typeof value !== 'string') {
return value
}
if (value.indexOf('function') === 0) {
/* eslint-disable-next-line no-eval */
return eval(`(${value})`)
}
if (
value.indexOf(ARROWFN_PREFIX) === 0 ||
value.indexOf(REGEXP_PREFIX) === 0
) {
/* eslint-disable-next-line no-eval */
return eval(value.slice(8))
}
}
return {
stringify: (obj, space) => JSON.stringify(obj, replacer, space),
parse: str => JSON.parse(str, reviver)
}
})