sindresorhus/eslint-plugin-unicorn

Report useless check when accessing array elements in `no-useless-undefined`

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#1.689 geöffnet am 11.01.2022

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enhancementhelp wanted

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Beschreibung

Fail

const foo = index >= 0 ? array[index] : undefined;
const foo = index < 0 ? undefined : array[index];
const foo = index <= array.length - 1 ? array[index] : undefined;
const foo = index > array.length - 1 ? undefined : array[index];
const foo = index >= 5 ? array[index - 5] : undefined;

Pass

const foo = array[index];
const foo = index >= 0 ? array[index] : bar;

I'm not sure if we should add this to no-useless-undefined or add a new rule.

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