async function expression - JavaScript | MDN

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async function declaration

The async function keywords can be used to define an async function inside an expression.

expression statement

Note: An expression statement cannot begin with the keywords async function to avoid ambiguity with an async function declaration. The async function keywords only begin an expression when they appear in a context that c

Functions reference

The name of a formal parameter for the function. For the parameters' syntax, see the Functions reference.

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This page was last modified on Jul 8, 2025 by MDN contributors.

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