Sha256: b6e67a092eac143128294b89e5cee93f6bd8ec5e9cbbeb443635e09ab93ed5ff

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Size: 862 Bytes

Versions: 185

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Stored size: 862 Bytes

Contents

let realPrimes = [];

function generatePrimes(uptoNumber) {
  if (realPrimes.length > 0) {
    return realPrimes;
  }

  let currentPrime,
    possiblePrimes = [];
  for (let i = 2; i <= uptoNumber; i++) {
    possiblePrimes.push({ number: i, prime: true });
  }

  for (let i = 2; i < Math.sqrt(possiblePrimes.length); i++) {
    for (let j = 0; j < possiblePrimes.length; j++) {
      currentPrime = possiblePrimes[j];
      if (currentPrime.number !== i && currentPrime.number % i === 0) {
        currentPrime.prime = false;
      }
    }
  }

  return possiblePrimes
    .filter(candidate => candidate.prime)
    .map(p => p.number);
}

class Prime {
  nth(nthPrime) {
    if (nthPrime === 0) {
      throw new Error('Prime is not possible');
    }
    realPrimes = generatePrimes(200000);
    return realPrimes[nthPrime - 1];
  }
}

export default Prime;

Version data entries

185 entries across 185 versions & 1 rubygems

Version Path
trackler-2.2.1.119 tracks/ecmascript/exercises/nth-prime/example.js
trackler-2.2.1.118 tracks/ecmascript/exercises/nth-prime/example.js
trackler-2.2.1.117 tracks/ecmascript/exercises/nth-prime/example.js
trackler-2.2.1.116 tracks/ecmascript/exercises/nth-prime/example.js
trackler-2.2.1.115 tracks/ecmascript/exercises/nth-prime/example.js
trackler-2.2.1.114 tracks/ecmascript/exercises/nth-prime/example.js
trackler-2.2.1.113 tracks/ecmascript/exercises/nth-prime/example.js
trackler-2.2.1.111 tracks/ecmascript/exercises/nth-prime/example.js
trackler-2.2.1.110 tracks/ecmascript/exercises/nth-prime/example.js
trackler-2.2.1.109 tracks/ecmascript/exercises/nth-prime/example.js
trackler-2.2.1.108 tracks/ecmascript/exercises/nth-prime/example.js
trackler-2.2.1.107 tracks/ecmascript/exercises/nth-prime/example.js
trackler-2.2.1.106 tracks/ecmascript/exercises/nth-prime/example.js
trackler-2.2.1.105 tracks/ecmascript/exercises/nth-prime/example.js
trackler-2.2.1.104 tracks/ecmascript/exercises/nth-prime/example.js
trackler-2.2.1.103 tracks/ecmascript/exercises/nth-prime/example.js
trackler-2.2.1.102 tracks/ecmascript/exercises/nth-prime/example.js
trackler-2.2.1.101 tracks/ecmascript/exercises/nth-prime/example.js
trackler-2.2.1.100 tracks/ecmascript/exercises/nth-prime/example.js
trackler-2.2.1.99 tracks/ecmascript/exercises/nth-prime/example.js