unicorn/no-confusing-array-with Suspicious
What it does
Disallows confusing uses of Array#with().
Why is this bad?
Array#with() treats a negative index as an offset from the end of the array, unlike methods such as slice() or splice(). Using a negative static index is usually a mistake. Using .length as the index always produces undefined, since valid indices are 0 .. length - 1.
Examples
Examples of incorrect code for this rule:
javascript
array.with(-1, value);
array.with(array.length, value);Examples of correct code for this rule:
javascript
array.with(array.length - 1, value);
array.with(index, value);How to use
To enable this rule using the config file or in the CLI, you can use:
json
{
"rules": {
"unicorn/no-confusing-array-with": "error"
}
}ts
import { defineConfig } from "oxlint";
export default defineConfig({
rules: {
"unicorn/no-confusing-array-with": "error",
},
});bash
oxlint --deny unicorn/no-confusing-array-withVersion
This rule was added in vnext.