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RikiyaOta/sum_of_array.js

Created October 22, 2018 03:59
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[javascript]reduceっぽい関数を書いてみる
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sum_of_array.js
function sumOfArray(arr, sum = 0){
if(arr.lenth === 0) return sum;
else{
const [first, ...rest] = arr;
return sumOfArray(rest, first + sum);
}
}
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