How to get the value returned by a function in Typescript?

I have simply functions to set new subject and mark:

public setSubject(subject)
return subject;


public setMark(mark)
return mark;



I want setSubject() to return a string with the subject name and setMark() to return a number. I call them in another function matFn():

setSubject()

setMark()

matFn()

public matFn()
var subject="Maths";
this.setSubject(subject);



For every subject I have function which gets subject name and call setSubject() with this subject as an argument.
In another function getData() I want to display them (next step will be the functionality, but let's start with console.log):

setSubject()

getData()

public getData()
var subject = this.setSubject();
var mark = this.setMark();
console.log(subject)
console.log(mark)



I want to display exactly what setSubject() and setMark() returns. How would I do that?

1 Answer
1

If you are looking for getter and setter , you can try like below

class SomeClass
private _subject:string = "";
get subject():string
return this._subject;

set subject(value:string)
this._subject = _subject;



let someClassObj= new SomeClass();
obj.subject="hellow"


You can read the same

console.log(obj.subject)


Another Approach

declare a variable to set the value , you can read later when need

subject:string="";
public setSubject(subject)
this.subject=subject;



if the method is in same class you can access with this object on your method want to access

this

console.log(this.subject)


Else you have to create an instance of the class.

let subjectClass=new Subject();
console.log(subjectClass.subject)


Sample Code
https://stackblitz.com/edit/typescript-fr8jro?file=SubjectClass.ts

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