When checking existence, should prefer Map#has() over Map#get().
Fail
if (map.get(foo));Pass
if (map.has(foo));I think better ship this with prefer-map together, so user can notice this problem when we fix object.foo to map.get(foo) in prefer-map.
sindresorhus / eslint-plugin-unicorn
More than 100 powerful ESLint rules
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