JavaScript reduce sum array – How to find the sum of an array of numbers?

JavaScript reduce sum array Use the for Loop to Sum an Array, Use the reduce() Method to Sum an Array and Use the lodash Library to Sum an Array in a JavaScript Array Examples.

JavaScript reduce sum array and JavaScript Array reduce()

The reduce() method to sum all numbers in the array:

const runs = [175, 50, 25];

document.getElementById("result").innerHTML = runs.reduce(totalRuns);

function totalRuns(total, num) {
  return total + num;
}

Sum of an Array in JavaScript

Use the for Loop to Sum an Array in a JavaScript Array

const array = [175, 50, 25, 58, 55];
let result = 0;

for (let i = 0; i < array.length; i++) {
    result += array[i];
}
console.log(result);

Use the reduce() Method to Sum an Array in a JavaScript Array

const runs = [175, 50, 25, 58, 55];
const reducer = (accumulator, curr) => accumulator + curr;
console.log(runs.reduce(reducer));

Use the lodash Library to Sum an Array in a JavaScript Array

var lodash = require('lodash');
var runs = [175, 50, 25, 58, 55];
var result = lodash.sum(runs);
console.log(result); 

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