![angular - Argument type 'string | null' not assignable to parameter type ' string | number | boolean' - Stack Overflow angular - Argument type 'string | null' not assignable to parameter type ' string | number | boolean' - Stack Overflow](https://i.stack.imgur.com/9CB4X.png)
angular - Argument type 'string | null' not assignable to parameter type ' string | number | boolean' - Stack Overflow
numberFilter unnecessary string to number to string conversion => precision issue · Issue #16175 · angular/angular.js · GitHub
strictTemplates: does not allow coercion of string to number · Issue #36440 · angular/angular · GitHub
![angular - This condition will always return 'false' since the types 'string' and 'number' have no overlap. even with '==' - Stack Overflow angular - This condition will always return 'false' since the types 'string' and 'number' have no overlap. even with '==' - Stack Overflow](https://i.stack.imgur.com/U22nv.jpg)