# es/no-nullish-coalescing-operators
disallow nullish coalescing operators
- ✅ The following configurations enable this rule:
plugin:es/no-new-in-es2020
,plugin:es/restrict-to-es3
,plugin:es/restrict-to-es5
,plugin:es/restrict-to-es2015
,plugin:es/restrict-to-es2016
,plugin:es/restrict-to-es2017
,plugin:es/restrict-to-es2018
, andplugin:es/restrict-to-es2019
This rule reports ES2020 Nullish Coalescing operators (opens new window) as errors.
# Examples
⛔ Examples of incorrect code for this rule:
/*eslint es/no-nullish-coalescing-operators: error */
var x = a ?? b
👌 Examples of correct code for this rule:
/*eslint es/no-nullish-coalescing-operators: error */
var x = a || b
var x = a != null ? a : b