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I am trying to do the following:

  • Create a constructor function
  • Create a function and store it as a variable (the function will rely on value of this)
  • Attach the function to the prototype of the constructor function

I can't figure out how to keep value of this inside the function to be pointing to the instance.

This code is from ChatGPT and explains exactly what I want to do:

let myFunction = () => {
  console.log(this.value);
};

function MyObject(value) {
  this.value = value;
}

MyObject.prototype.showValue = myFunction;

BUT I either don't know how to use it or it straight up doesn't work as it suppose to.

The test I ran:

a = new MyObject('a')
b = new MyObject('b')

a.showValue() // I am expecting `a` to be printed out, but undefined is printed
b.showValue() // I am expecting `b` to be printed out, but undefined is printed

So what's happening here? Why is this not pointing to the instance? How do I go about fixing this?

Alexey Milyukov
  • 1
  • 1

0 Answers0