I’m trying to get the total of an array passed via a console log. However instead of adding the numbers it’s returning the array with a 0 in front.
This is what I have tried
const sum2 = (array) => {
let total = 0;
const totalFigure = array.reduce((total, number) => {}, 0)
return total + array
}
console.log(sum2([1, 3, 5, 7, 9]));
>Solution :
Array.prototype.reduce() accepts callback function where the first parameter of the callback is "total" value calculated in previous iteration of loop and current value of iteration as the second parameter. The final code could look like this:
const sum2 = arr => {
const result = arr.reduce((total, number) => {
return total + number;
}, 0);
return result;
};
And shorter:
const sum2 = arr => arr.reduce((total, number) => total + number, 0);