# es/no-async-functions
disallow async function declarations
- ✅ The following configurations enable this rule:
plugin:es/no-new-in-es2017
,plugin:es/restrict-to-es3
,plugin:es/restrict-to-es5
,plugin:es/restrict-to-es2015
, andplugin:es/restrict-to-es2016
This rule reports ES2017 async functions (opens new window) as errors.
# Examples
⛔ Examples of incorrect code for this rule:
/*eslint es/no-async-functions: error */
async function f1() {}
let f2 = async function() {}
let f3 = async () => {}
let obj = { async f4() {} }
class A { async f5() {} }