Linked Questions
104 questions linked to/from How to find the sum of an array of numbers
297
votes
35
answers
740k
views
How to compute the sum and average of elements in an array? [duplicate]
I am having problems adding all the elements of an array as well as averaging them out. How would I do this and implement it with the code I currently have? The elements are supposed to be defined as ...
- 3,087
51
votes
9
answers
164k
views
Sum of values in an array using jQuery [duplicate]
I have an array containing some values and I want to get their sum. Here is the example:
var somearray = ["20","40","80","400"];
I want to sum these values using jQuery. In this example the result ...
- 3,967
4
votes
4
answers
45k
views
Calculate sum with forEach function? [duplicate]
I want to calculate sum with forEach array function in JavaScript.
But I don't get what I want.
function sum(...args) {
args.forEach(arg => {
var total = 0;
total += arg;
console....
- 4,887
1
vote
1
answer
29k
views
With Javascript use a for loop to sum numbers in an array [duplicate]
I'm trying to find a way to sum all the numbers that have been added to an array. I believe this should work:
var total = 0;
for (var i = 0; i < totalPrice.length; i++);
total += ...
- 1,250
1
vote
7
answers
8k
views
How to multiply all items in array inside a loop with JavaScript [duplicate]
I have dynamic input of items 0 to N in a function (JavaScript).
In each position have value like items[1,3,4], creating a loop:
update: items or "the array" is dynamic I don't have permanent values....
- 11
1
vote
4
answers
9k
views
Sum arrays in array (JavaScript) [duplicate]
I have an array that consists of multiple arrays:
var array = [[1], [2, 1, 1], [3, 4]];
Now I want to get an array that has elements that are the sums of each array in the variable "array". In this ...
1
vote
5
answers
3k
views
Sum negative and positive numbers in array to get a result [duplicate]
i'm stucked with a simple logic, i have an array as a result that contains positive and negative numbers.
what i need is to sum both negative and positive and print a result
const arr = ['-8', '-3', '...
0
votes
5
answers
5k
views
Make an array filled with numbers 1 to 10000 and then sum all of those numbers [duplicate]
How can I turn this into a function that takes an array of any length and gives you the total?
var points = new Array(100);
for (var i = 0; i < 100; i++) {
points[i] = i + 1;
}
for(var i = 0;...
2
votes
5
answers
1k
views
There is a blank array and i need add numbers [duplicate]
I have a blank array and i need to add the numbers from 1 to 20 to this array.
After that i need to sum these number totally. I am stucked in here:
for(i=1;i<=20;i++){
push()
}
What do you ...
- 33
0
votes
1
answer
2k
views
Using map method to find a total? [duplicate]
So let's say I have some data.
const cart = [
[{name: "Jose", total: 5}],
[{name: "Rich", total: 10}]
]
How do I total up those totals using map or forEach?
- 1,509
0
votes
1
answer
368
views
Sum an array of milliseconds [duplicate]
I'm having an array of milliseconds which I want a total of. I have tried the array.reduce and use a for-loop but all I get is total gibberish when I console it or use on the site. If I get the ...
- 399
0
votes
1
answer
315
views
Calculate sum of values in Object of arrays [duplicate]
I have a json in the below format
let newarrayObj = [
{
"cost one": "118",
"cost two": "118",
"cost three": "118"
},
...
0
votes
1
answer
257
views
Calculating the sum of a var [duplicate]
I am trying to calculate the sum of my 'var time' so that it can display the total on my table. Could someone tell me how do I go about doing this?
<td>
<h3 id="Luke Hours">
...
- 45
0
votes
7
answers
171
views
How to add up values stored in an array created using push prompt [duplicate]
I'm prompting the user to enter how many numbers they would like to store in an array. Then I prompt user to enter each individual number and push this into an array, I can display the numbers ...
- 15
0
votes
1
answer
262
views
Recursive counting and find the sum of the given values [duplicate]
hoping someone can point me in the right direction here. I have to add the pages of each book and get a total at the end. I was able to do a function that pulls the values from the pages attribute, ...
- 45