js sum of array
[1, 2, 3, 4].reduce((a, b) => a + b, 0)
// Output: 10js sum of array
[1, 2, 3, 4].reduce((a, b) => a + b, 0)
// Output: 10how to sum variables to an array in javascript
function sumGrades(grades) {
let sum =0;
grades.forEach(function(grade){
sum += grade;
})
return sum;
}
// Sample usage - do not modify
console.log(sumGrades([15, 5, 10])); // 30
console.log(sumGrades([12, 10, 13, 19])); // 54Copyright © 2021 Codeinu
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