Sum of All Elements in Array using JavaScript | Learn JavaScript & Algorithms
Find sum of all elements in array using javascript. Write a function that finds the sum of all elements in an array using JavaScript. Here's a simple approach that calculates the sum of all elements in an array in JavaScript.
Define a function which takes an array as input. Declare a variable sum and initialize it to 0. Use a for loop to iterate over the elements in the array. The loop runs as many times as the length of arr, and the loop variable i starts from 0 and increments by 1 on each iteration.
In the loop body, add the value of the current element of arr to the sum. This step is repeated for each iteration of the loop, so the sum will keep growing until all elements of arr have been processed. After all elements have been processed, return the sum.
Declare an array and assign values. Call sumArray function with arr as input. The result of the function is the sum of elements in the array.
This is how we can calculate sum of all elements in an array using JavaScript.
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If you want to find sum of two array elements in javascript let me know in comments.
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