I don’t understand why I’m not passing here

Tell us what’s happening:
Describe your issue in detail here.

  **Your code so far**

function Dog(name) {
this.name = name;
}

Dog.prototype = {
// Only change code below this line
numLegs = 2,
eat: function(){
console.log("nom nom nom");
},
describe: function(){
console.log("My name is " +this.name);
}

};
  **Your browser information:**

User Agent is: Mozilla/5.0 (iPhone; CPU iPhone OS 15_3 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/15.3 Mobile/15E148 Safari/604.1

Challenge: Change the Prototype to a New Object

Link to the challenge:

You may need to read the console and notice what error it is saying

SyntaxError: unknown: Invalid shorthand property initializer. (7:8)

   5 | Dog.prototype = {
   6 | // Only change code below this line
>  7 | numLegs = 2,
     |         ^
   8 | eat: function(){
   9 | console.log("nom nom nom");
  10 | },

do not forget object type has key:value