javascript

TypeError: Object is not extensible (Object.freeze)

object is not extensible

Fixes

1.Clone frozen object before modifying
2.Use spread to create new object with changes
3.Don't freeze objects you need to mutate

TypeErrorruntimeobject

Related Errors

javascript3 fixes

Cannot read property of undefined

Cannot read propert(y|ies) of undefined

•Add optional chaining (?.)
•Check if object exists before accessing

javascript3 fixes

Cannot read property of null

Cannot read propert(y|ies) of null

•Add null check before access
•Use optional chaining (?.)

javascript3 fixes

TypeError: X is not a function

is not a function

•Check spelling of method name
•Verify import is correct