adding numbers in an array code example
Example 1: adding numbers in an array javascript
console.log(
[].reduce((a, b) => a + b)
)
Example 2: how to add up all numbers in an array
var numbers = [10, 20, 30, 40]
var sum = 0;
for (var i = 0; i < numbers.length; i++) { sum += numbers[i]}
Example 3: how to add up all numbers in an array
const numbers = [10, 20, 30, 40]
add = (a, b) => a + b
const sum = numbers.reduce(add)
Example 4: Write a function that takes an array of number values and returns the sum.
function amountTotal(amount) {
var total = 0;
for (i = 0; i < amount.length; ++i) {
total += amount[i]; // add each element in an array to total
}
return total;// return sum of elements in array
}