Javascript: Cannot read property 'length' of undefined

Question

I'm trying to generate a random outcome based on an array, however I'm getting this error when I log it out, any ideas why?

const hockeyPlayer = {
  position: "goalie",
  action: ["stops the shot", "gives up a goal"],
  outcome: [Math.floor(Math.random() * this.action.length)],
  
    
  shot(){
    console.log(`The ${this.position} ${this.outcome}`)
  }
};
  
hockeyPlayer.shot();

Try calculating the `outcome` inside the `shot` method. – Bergi Jun 23 '20 at 17:36 — Bergi, Jun 23 '20 at 17:36

Anirudh santhosh · Answer 1 · 2020-06-23T17:59:35.763

0

       Try this 
    
        const hockeyPlayer = 
    { position: "goalie",
 action: ["stops the shot","gives up a goal"],
shot: function(){ 
     const outcome  = this.action[Math.floor(Math.random() * this.action.length)];
          
    alert(`The ${this.position} ${this.outcome}`) } }; hockeyPlayer.shot();

edited Jun 23 '20 at 17:59

answered Jun 23 '20 at 17:38

Anirudh santhosh

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Javascript: Cannot read property 'length' of undefined

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