js sum of array
[1, 2, 3, 4].reduce((a, b) => a + b, 0)
// Output: 10
js sum of array
[1, 2, 3, 4].reduce((a, b) => a + b, 0)
// Output: 10
es6 array sum javascript
const arrSum = arr.reduce((a,b) => a + b, 0);
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