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JavaScript Object-Oriented JavaScript Object Basics Filling Out the Play Method

Posted by Haardik Gupta
.a{fill-rule:evenodd;}techdegree
Haardik Gupta
Full Stack JavaScript Techdegree Student 5,459 Points

if else

i don't understand what i'm doing wrong

i'm being asked to

Inside the if statement, return a string equal to the value of the name property followed by the string " is now playing!". Use bracket notation.

object.js 
const player1 = {
    name: 'Ashley',
    color: 'purple',
    isTurn: true,
    play: function(){
        // write code here.
      if (this.isTurn) {
        console.log(this.name.value + 'is now playing');
        }
    }
}

4 Answers

Fabio Faria
Fabio Faria
2,153 Points
Fabio Faria
Fabio Faria
2,153 Points

return player1['name'] + "string";

Zimri Leijen
Zimri Leijen
11,835 Points
Zimri Leijen
Zimri Leijen
11,835 Points

There's several terms in the question you seem to have misunderstood.

return

is a keyword that causes a function to return something.

Certain functions have an output, which is called the return. One example would be a sum function like

function sum(a, b) {
  return a + b;
}

const answer = sum(3, 2); 
console.log(answer); // should log 5

Bracket notation, as apposed to dot notation is just a different way to access a value.

this.name

would be dot notation, while

this["name"]

would be bracket notation.

Haardik Gupta
.a{fill-rule:evenodd;}techdegree
Haardik Gupta
Full Stack JavaScript Techdegree Student 5,459 Points

i tried again my new code was

 const player1 = {
    name: 'Ashley',
    color: 'purple',
    isTurn: true,
    play: function(){
        // write code here.
      if (this.isTurn) {
        return (this[name] "is now playing);
        }
    }
}

but i got the error invalid or unexpected token

Zimri Leijen
Zimri Leijen
11,835 Points 
 const player1 = {
    name: 'Ashley',
    color: 'purple',
    isTurn: true,
    play: function(){
        // write code here.
      if (this.isTurn) {
        return (this[name] "is now playing);
        }
    }
}

That's already quite good, note that return doesn't need parenthesis, so you can just for example

return "some string"

Since you want to return a value and a string, you can either append the string to the value like this:

return value + "string"

or use string interpolation (template literal)

return `${value} string`
Haardik Gupta
seal-mask
.a{fill-rule:evenodd;}techdegree
Haardik Gupta
Full Stack JavaScript Techdegree Student 5,459 Points
Haardik Gupta
.a{fill-rule:evenodd;}techdegree
Haardik Gupta
Full Stack JavaScript Techdegree Student 5,459 Points

thank you for the help

Sezare Miguel
Sezare Miguel
9,229 Points
Sezare Miguel
Sezare Miguel
9,229 Points

``` const player1 = { name: 'Ashley', color: 'purple', isTurn: true, play: function(){ // write code here. if (this.isTurn) { return Ashely + "is now playing"; } } }