❗reserved word as property name is allowed❗️
JS ⟩ grammar ⟩ keyword ⟩ reserved word ⟩ as property name is allowed❗
reserved word can be used as property name❗
const obj = { var: 'joe' }; // ❗️ "var" is reserved word
obj.var; // ⭐️ 'joe'
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