Just half work done

JavaScript
1

Hi!

I just get to one part of the code, but I don’t know how to make it run for more values of input…
Can you tell me where I did wrong or what I’m missing here?..

Your code so far


function orbitalPeriod(arr) {
const GM = 398600.4418;
const earthRadius = 6367.4447;
let newArr = []

let func = arr.reduce((x) => 
2*Math.PI*Math.sqrt(((earthRadius + arr[x].avgAlt)**3)/GM), 0)
console.log(func)

for (let i = 0; i < arr.length; i++) {
  
  newArr.push({
      name: arr[i].name, 
      orbitalPeriod: Math.round(func)
      })
}
console.log(newArr)

return newArr;
}

//orbitalPeriod([{name : "sputnik", avgAlt : 35873.5553}]);  ---- this works

orbitalPeriod([{name: "iss", avgAlt: 413.6}, {name: "hubble", avgAlt: 556.7}, {name: "moon", avgAlt: 378632.553}])    // but not this

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User Agent is: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/83.0.4103.116 Safari/537.36.

Challenge: Map the Debris

Link to the challenge:

2

Hey man i have this idea.
see if you understand. \o/

let func = arr.map((x) =>
2*(Math.PI)*(Math.sqrt(((earthRadius + x.avgAlt)**3)/GM)));

for (let i = 0; i < arr.length; i++) { 
  newArr.push({
      name: arr[i].name, 
      orbitalPeriod: Math.round(func[i])
      })
}
1 Like
3

oooo, thank you!!!

i knew that i need to use map, but i didn’t know that i don’t need to use ‘arr[ x ].avgAlt’ anymore, just ‘x.avgAlt’ <3

thx bro

1 Like