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Fix crash when modifying array length #89

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merged 1 commit into from Jan 22, 2022

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Jimbly
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@Jimbly Jimbly commented Jan 1, 2022

Also avoids unnecessary allocation and set.

Fixes cases like the following:

let obj = { a: [1,2] };
dotProp.delete(obj, 'a.1');
dotProp.set(obj, 'a.length', 1);

Previously would throw Uncaught RangeError: Invalid array length when it tries to set obj.a.length = {}

@sindresorhus
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Can you add a test?

Also avoids unnecessary allocation and set.

Fixes cases like the following:
```javascript
let obj = { a: [1,2] };
dotProp.delete(obj, 'a.1');
dotProp.set(obj, 'a.length', 1);
```
Previously would throw `Uncaught RangeError: Invalid array length` when it tries to set `obj.a.length = {}`
@Jimbly
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Jimbly commented Jan 22, 2022

Merge conflicts resolved and test added (also verified the test still fails on main).

@sindresorhus sindresorhus changed the title Fix crashing modifying array length Fix crash when modifying array length Jan 22, 2022
@sindresorhus sindresorhus merged commit d363922 into sindresorhus:main Jan 22, 2022
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2 participants