A TypeScript class called Atom is defined as follows:
export class Atom {
public text: String;
public image: boolean;
public equation: boolean;
}
To create an object of type Atom class and set its properties, the following steps are used:
atom: Atom = new Atom();
atom.text = "hello";
Error Message: Subsequent variable declarations must have the same type. Variable atom must be of type Atom, but it is currently of type any.
const newAtom = Atom();
newAtom.image = "hello";
An error occurs here because a string is being assigned to the image property which is declared as a boolean.
Alternatively, you can use a constructor like this:
export class Atom {
constructor(
public text?:String,
public image?:boolean,
public equation?:boolean) {}
}
You can then create an instance like this:
new Atom('someText', true, false);
or
new Atom({text: 'someText'});
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