# es/no-trailing-function-commas
disallow trailing commas in parameter/argument lists
- ✅ 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 - 🔧 The
--fixoption on the command line (opens new window) can automatically fix some of the problems reported by this rule.
This rule reports ES2017 trailing commas in parameter/argument lists (opens new window) as errors.
# Examples
⛔ Examples of incorrect code for this rule:
/*eslint es/no-trailing-function-commas: error */
async function f1(a,) {}
let f2 = async function(a,) {}
let f3 = async (a,) => {}
let obj = { async f4(a,) {} }
class A { async f5(a,) {} }
foo(a,)
new F(a,)