![angular - TS2345: Argument of type 'string | null' is not assignable to parameter of type 'string | UrlTree' - Stack Overflow angular - TS2345: Argument of type 'string | null' is not assignable to parameter of type 'string | UrlTree' - Stack Overflow](https://i.stack.imgur.com/ThNDx.png)
angular - TS2345: Argument of type 'string | null' is not assignable to parameter of type 'string | UrlTree' - Stack Overflow
![Remove NULL and "empty string" from filter control values? - Question & Answer - Amazon QuickSight Community Remove NULL and "empty string" from filter control values? - Question & Answer - Amazon QuickSight Community](https://d1wl4jav5dp96l.cloudfront.net/original/2X/a/af2d1a11206bbd110b312e768af5cdac26a83c52.png)
Remove NULL and "empty string" from filter control values? - Question & Answer - Amazon QuickSight Community
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Exclude NULL or Empty String from Filter selection - Question & Answer - Amazon QuickSight Community
![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/Tehs9.png)
angular - Argument type 'string | null' not assignable to parameter type ' string | number | boolean' - Stack Overflow
Setting an empty string instead of null or empty object when editable is false · Issue #3176 · angular-ui/bootstrap · GitHub
![Exclude NULL or Empty String from Filter selection - Question & Answer - Amazon QuickSight Community Exclude NULL or Empty String from Filter selection - Question & Answer - Amazon QuickSight Community](https://d1wl4jav5dp96l.cloudfront.net/original/2X/7/70e324a1c6a7241504486abcf0372e681e3c2ef4.png)