# es/no-optional-chaining

disallow optional chaining

• ✅ 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, and plugin:es/restrict-to-es2019

This rule reports ES2020 Optional Chaining (opens new window) as errors.

# Examples

⛔ Examples of incorrect code for this rule:

👌 Examples of correct code for this rule:

# 📚 References

• Rule source (opens new window)
• Test source (opens new window)