freeCodeCamp/guide/english/certifications/javascript-algorithms-and-data-structures/object-oriented-programming/create-a-method-on-an-object/index.md

title

title
Create a Method on an Object

Create a Method on an Object

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Problem Explanation

An objects function must be initialised within the object itself. This is demonstrated in the following code.

let obj = {
  property1: 1,

  function1: function() {
    //Code to be exectued
  }
};

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Solutions

Solution 1 (Click to Show/Hide)

let dog = {
  name: "Spot",
  numLegs: 4,
  sayLegs: function() {
    return "This dog has " + dog.numLegs + " legs.";
  }
};

dog.sayLegs();