javascript

TypeError: Invalid WeakSet value

WeakSet value must be an object

Fixes

1.Use object as WeakSet value
2.Don't add primitives to WeakSet
3.Use Set for primitive values

TypeErrorruntimeweakset

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