Created
August 23, 2021 18:57
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| function findMissingValue(values) { | |
| let seq = values.reduce((result, value, index) => { | |
| let nextIndex = index + 1; | |
| if (nextIndex < values.length) { | |
| let deference = values[nextIndex] - value; | |
| result.push(deference); | |
| } | |
| return result; | |
| }, []); | |
| let outcome = []; | |
| let sequence = seq.filter((item, i, ar) => ar.indexOf(item) !== i)[0]; | |
| let maxCount = values[values.length - 1]; | |
| for (let i = values[0]; i <= maxCount; i = i + sequence) { | |
| outcome.push(i); | |
| } | |
| return outcome.filter((i) => !values.includes(i)); | |
| } | |
| let [missing] = findMissingValue([1, 3, 4, 5, 6]); | |
| console.log(missing); |
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