How to check property null or undefined in TypeScript or Angular

How to check property null or undefined in TypeScript or Angular

In this article, we will see how to check for both null and undefined in Angular/Typescript, Whenever we are using any typescript class or interface we define some properties there and we often need to check whether that property is null or undefined to prevent some run time error.

Solve – Error Property ‘…’ has no initializer and is not definitely assigned in the constructor Solution

Solve – Error Property ‘…’ has no initializer and is not definitely assigned in the constructor Solution

In this article we will see solution for error “Property has no initializer and is not definitely assigned in the constructor”. We will see there are multiple ways to get rid of this error “Property has no initializer and is not definitely assigned in the constructor”.