Js cannot assign to read only property of object

- Js cannot assign to read only property 0 of object ' object array '
- Js sort cannot assign to read only property '0' of object
- Js array sort cannot assign to read only property 0 of object
- Cannot read property of undefined node js
- Typeerror cannot read properties of undefined (reading 'name')
- Cannot read properties of null (reading 'id')
- Typeerror cannot read properties of undefined (reading 'length')