Bug: parse->stringify->parse get different results

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8,942 stars (8,942 stars)

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Avg merge 6d 22h (Avg merge 6d 22h)2 merged PRs in 30d (2 merged PRs in 30d)

Description

const qs = require('qs');
const assert = require('assert');

const str = '&=]p&Qm[UU3]={Qmm&Qm=]]&Qm[[UF3]mi]=mQvmQm;';
const obj = qs.parse(str);
const str1 = qs.stringify(obj);
const obj1 = qs.parse(str1);
assert.deepEqual(obj, obj1);

Contributor guide

Research direction

Reproduce the bug with the provided code, then trace the parse and stringify functions to see where the loss of information occurs. Focus on handling of special characters and nested objects.

Tech stack

javascript

Domain

backendapi

Issue type

Bug

DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.

2

Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.

1-3 hours

Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.

Active

ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.

Clear

Prerequisites

JavaScriptNode.js

Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.

75