1510136 - JSON.parse not correct when decoding Special json string

Status: RESOLVED INVALID

(Core :: JavaScript Engine, defect)

Description

[maoren]

Attachment: TIM截图20181127143944.png

User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.110 Safari/537.36

Steps to reproduce:

decoding json string:

JSON.parse('{"id":15793596764604416,"tenantId":"qiushi6","createTime":1543269513000,"updateTime":null,"nodes":[{"id":15793596808644609,"name":"开始","workflowId":15793596764604416,"type":"tflowstart","x":100,"y":200,"remark":null,"reserved":false},{"id":15793596808644608,"name":"时间","workflowId":15793596764604416,"type":"tflowtime","x":200,"y":200,"remark":null,"reserved":false}],"connects":[{"id":15793596808644610,"workflowId":15793596764604416,"source":15793596808644609,"target":15793596808644608,"position":0,"name":null,"reserved":true,"sourceNode":null,"targetNode":null}],"reserved":false}')


Actual results:

result object 

{
  "id": 15793596764604416,
  "tenantId": "qiushi6",
  "createTime": 1543269513000,
  "updateTime": null,
  "nodes": [
    {
      "id": 15793596808644608,
      "name": "开始",
      "workflowId": 15793596764604416,
      "type": "tflowstart",
      "x": 100,
      "y": 200,
      "remark": null,
      "reserved": false
    },
    {
      "id": 15793596808644608,
      "name": "时间",
      "workflowId": 15793596764604416,
      "type": "tflowtime",
      "x": 200,
      "y": 200,
      "remark": null,
      "reserved": false
    }
  ],
  "connects": [
    {
      "id": 15793596808644610,
      "workflowId": 15793596764604416,
      "source": 15793596808644608,
      "target": 15793596808644608,
      "position": 0,
      "name": null,
      "reserved": true,
      "sourceNode": null,
      "targetNode": null
    }
  ],
  "reserved": false
}


Expected results:

expected result

{
  "id": 15793596764604416,
  "tenantId": "qiushi6",
  "createTime": 1543269513000,
  "updateTime": null,
  "nodes": [
    {
      "id": 15793596808644608,
      "name": "开始",
      "workflowId": 15793596764604416,
      "type": "tflowstart",
      "x": 100,
      "y": 200,
      "remark": null,
      "reserved": false
    },
    {
      "id": 15793596808644609,
      "name": "时间",
      "workflowId": 15793596764604416,
      "type": "tflowtime",
      "x": 200,
      "y": 200,
      "remark": null,
      "reserved": false
    }
  ],
  "connects": [
    {
      "id": 15793596808644610,
      "workflowId": 15793596764604416,
      "source": 15793596808644608,
      "target": 15793596808644609,
      "position": 0,
      "name": null,
      "reserved": true,
      "sourceNode": null,
      "targetNode": null
    }
  ],
  "reserved": false
}

Comment 1

[Tooru Fujisawa [:arai]]

15793596808644609 is not representable with JS number value, and rounded to near value.

https://tc39.github.io/ecma262/#sec-terms-and-definitions-number-value
> 4.3.20 Number value
> primitive value corresponding to a double-precision 64-bit binary format IEEE 754-2008 value

the result is consistent across browsers.