taesik

Sum of numbers from 0 to N 본문

functions and trick/typescript_javascript

Sum of numbers from 0 to N

taesikk 2022. 1. 25. 14:34 
class SequenceSum {
  static showSequence(n) {
    return n < 0
      ? `${n}<0`
      : `${Array.from({length: n+1}, (v, k) => k).join('+')}${n?' = ':'='}${n*(n+1)/2}`;
  }
}

 

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