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fix: handle empty null-prototyped objects #5506

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fix: handle empty null-prototyped objects #5506

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672e8e6
fix: handle empty null-prototyped objects
Oct 21, 2025
96ee6f5
Merge branch 'main' into deep-equal-null-prototype
Nov 4, 2025
854a167
rebuild for CLA?
Nov 4, 2025
0558c5b
rebuild again to remove rebuild file
Nov 4, 2025
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1 change: 1 addition & 0 deletions lib/utils.js
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Original file line number Diff line number Diff line change
Expand Up @@ -108,6 +108,7 @@ function emptyRepresentation(value, typeHint) {
switch (typeHint) {
case 'function':
return '[Function]';
case 'null-prototype':
case 'object':
return '{}';
case 'array':
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7 changes: 7 additions & 0 deletions test/unit/utils.spec.js
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Expand Up @@ -290,6 +290,13 @@ describe('lib/utils', function () {
});

describe('should represent null prototypes', function () {
it('Without properties', function () {
const foo = Object.create(null, {});
const expected = '{}';

expect(stringify(foo), 'to be', expected);
});

it('With explicit names', function () {
const foo = Object.create(null, {
[Symbol.toStringTag]: {value: 'Foo'},
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