# es/no-object-issealed

disallow the Object.isSealed method

• ✅ The following configurations enable this rule: plugin:es/no-new-in-es5 and plugin:es/restrict-to-es3

This rule reports ES5 Object.isSealed method as errors.

# Examples

⛔ Examples of incorrect code for this rule:

# 📚 References

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