Utilizing the bind method within a function to dynamically pass a value that is utilized by the bind method

Currently, I'm experimenting with the apply, call, and bind methods, focusing on using bind in a specific scenario:

const chardonnay = {
  type: "still white",
  grape: "chardonnay",
  region: "France",
  description: function () {
    return `This wine is classified as ${this.type}, crafted from 100% ${this.grape} grapes sourced from ${this.region}.`;
  },
};

const malbec = {
  type: "still red",
  grape: "malbec",
  region: "Argentina",
};

const describeWine = (wine) => {
  return chardonnay.description.bind(wine);
};

console.log(describeWine(malbec));

My goal here being to pass a dynamic value for later use with bind, allowing me to store this functionality within another function where the argument will serve as the parameter for the bind method.

I hope my explanation makes sense. Can anyone shed light on why this approach isn't yielding the desired outcome and suggest a more effective way to achieve it?

Answer №1

Ensure you remember to invoke the bind's returned function using this syntax :

const chardonnay = {
  type: "still white",
  grape: "chardonnay",
  region: "France",
  description: function () {
    return `This is a ${this.type} wine made of 100% ${this.grape} grapes from ${this.region}.`;
  },
};

const malbec = {
  type: "still red",
  grape: "malbec",
  region: "Argentina",
};

const describeWine = (wine) => {
  return chardonnay.description.bind(wine)();
};

console.log(describeWine(malbec));

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