⛔️ SyntaxError

🚧 under construction

JS ⟩ error ⟩ SyntaxError

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🔴 主題

• duplicate parameter not allowed in strict mode❗️

• unexpected token "xxx"❗️

• unexpected number❗️

• missing initializer in const declaration❗️

• identifier 'xxx' has already been declared❗️

• lexical declaration cannot appear in a single-statement context❗️

• delete of an unqualified identifier in strict mode❗️ - can't delete variables.

• octal literals not allowed in strict mode❗️