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JavaScript React Components Managing State Building the Statistics Component

Seth wright
Seth wright
952 Points
Posted by Seth wright
Seth wright
952 Points

Why declare a variable for the total number of players instead of putting the data inline?

Why this: 

const Stats = (props) => {
const totalPlayers = props.players.length;
  return (
    <table className="stats">
      <tbody>
        <tr>
          <td>Players:</td>
          <td>{totalPlayers}</td>
        </tr>
        <tr>
          <td>Total Points:</td>
          <td>{props.score}</td>
        </tr>
      </tbody>
    </table>
  );
};

Instead of this:

const Stats = (props) => {
  return (
    <table className="stats">
      <tbody>
        <tr>
          <td>Players:</td>
          <td>{props.players.length}</td>
        </tr>
        <tr>
          <td>Total Points:</td>
          <td>{props.score}</td>
        </tr>
      </tbody>
    </table>
  );
};

Is this just a stylistic choice or is there a practical reason? They seem to work the same.

1 Answer

Travis Alstrand
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Travis Alstrand
Treehouse Teacher
Travis Alstrand
.a{fill-rule:evenodd;}techdegree
Travis Alstrand
Treehouse Teacher

Hey Seth wright ! You're correct, both will work just fine. I think that the top option makes the JSX more readable and if you were to need to access props.players.length again, it would save you from needing to type all of that out multiple times.