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[JS][7kyu] Number-like counter #5221

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[JS][7kyu] Number-like counter #5221

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26 changes: 26 additions & 0 deletions codewars/7kyu/number-like-counter/koronya.js
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Original file line number Diff line number Diff line change
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// [JS][7kyu] Number-like counter
// number-like-counter
// https://www.codewars.com/kata/5313b713bb244a0eb20001fe/train/javascript

class Counter {
constructor() {
this.value = 0
}

incr() {
this.value += 1
return this
}

[Symbol.toPrimitive](hint) {
return this.value
}
}

const c = new Counter()
c.incr()
c + 1 // 2
c > 1 // false
c > 0 // true
c == 1 // true
Math.sqrt(c) // 1