Package Exports

parse-part-json
parse-part-json/dist/cjs/index.cjs
parse-part-json/dist/esm/index.js

This package does not declare an exports field, so the exports above have been automatically detected and optimized by JSPM instead. If any package subpath is missing, it is recommended to post an issue to the original package (parse-part-json) to support the "exports" field. If that is not possible, create a JSPM override to customize the exports field for this package.

Readme

parse-part-json

This is a library that can parse incomplete JSON

Installation

$ npm i parse-part-json

Demo

ESModule:

import { parsePartJson } from 'parse-part-json'

Commonjs:

const { parsePartJson } = require('parse-part-json')

Example:

/**
 * note: This is not a complete JSON
 */
const json1 = `{"name": "John", "age": 30`

const result1 = parsePartJson(json1)
console.log(result1) // { name: 'John', age: 30 }

/**
 * Default tolerance for incomplete parsing of basic types
 */
const json2 = `{"name": "John", "age":nu`
const result2 = parsePartJson(json2)
console.log(result2) // { name: 'John', age: null }

// this throw BasicParseIncomplete Error
const result3 = parsePartJson(json2, { tolerateBasicIncomplete: false })

Preview

https://parse-part-json-demo.vercel.app/

Speed compare

The functionality of the partial-json library is the same as that of the parse-part-json library. Based on my terminal testing and comparison, their JSON parsing speeds vary depending on the data type, but in most cases, parse-part-json is 20–30% faster than partial-json.

import { parse } from 'partial-json'
import { parsePartJson } from 'parse-part-json'

const json1 = `{
  "appName": "WeatherTracker",
  "version": "1.2.0",
  "features": ["forecast", "alerts", "maps"],
  "settings": {
    "units": "metric",
    "language": "en",
    "notifications": true
  },
  "sampleData": {
    "cities": [
      {
        "id": 1001,
        "name": "Springfield",
        "temperature": 22.5,
        "conditions": "partly cloudy"
      },
      {
        "id": 1002,
        "name": "Shelbyville",
        "temperature": 19.8,
        "conditions": "sunny"
      }
    ],
    "updateTimestamp": "2023-05-16T14:30:00Z"
  },
  "metadata": {
    "developer": "Acme Apps",
    "releaseYear": 2023,
    "supportedOS": ["Android", "iOS", "`

// tset result:true
console.log(
  JSON.stringify(parse(json1)) === JSON.stringify(parsePartJson(json1))
)

//test speed
let start = Date.now()
for (let i = 0; i < 100000; i++) {
  parse(json1)
}
let end = Date.now()
// parse: 6023ms
console.log(`parse: ${end - start}ms`)

let start2 = Date.now()
for (let i = 0; i < 100000; i++) {
  parsePartJson(json1)
}
let end2 = Date.now()
// parsePartJson: 1259ms
console.log(`parsePartJson: ${end2 - start2}ms`)

The time consumed for parsing 100000 times in the same JSON segment (note: the results may vary depending on the device)：

parse-part-json : 1259ms

partial-json : 6023ms

Support

ESModule、Commonjs