javascript

TypeError: Invalid WeakMap key

WeakMap key must be an object or.*symbol

Fixes

1.Use object or unregistered symbol as key
2.Don't use primitives as WeakMap keys
3.Use Map for primitive keys

TypeErrorruntimeweakmap

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