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what is a method in programming

Wombat answered on July 5, 2022 Popularity 7/10 Helpfulness 2/10

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what is a method in programming

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A method is a function which is a property of an object.

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Source: developer.mozilla.org

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Contributed on Jul 05 2022

Wombat

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A method in object-oriented programming defines the behavior of objects that are created from a class.
Simple put, it is an action that an object is able to perfom
 
 //create a class invoice  
 class Invoice {
  client: string;
  details: string;
  amount: number;

  constructor(c: string, d: string, a: number) {
    this.client = c;
    this.details = d;
    this.amount = a;
  }

//create a method `format` that returns a string in a  predifined format
  format() {
    return `${this.client} owes $${this.amount} for ${this.details}`;
  }
}

//create instances of the class
const invOne = new Invoice("Murithi", "website work", 2500);
const invTwo = new Invoice("Hopp", "System design work", 250000);

//instantiate invoices to take an array. if you pass string or number it will throw an error
let invoices: Invoice[] = []; 

//add the two  class `invoice` instances into the `invoices` array
invoices.push(invOne);
invoices.push(invTwo);

console.log(invoices);

//call the format method to add the predefined format for each class instance
invoices.map(inv =>{
console.log(inv.format())
}
  )

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Contributed on Jul 25 2023

Murithi Mwenda

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what is a method in programming

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