How to calculate sum of multiple responses in javascript?

Question

The code below outputs numeric data

          var meshInstances = entity.model.meshInstances;
          var mat;
          for(var i = 0; i < meshInstances.length; i++) {
     //  mat = meshInstances[i].mesh.vertexBuffer.numVertices;
          mat = parseFloat(meshInstances[i].mesh.indexBuffer[0].numIndices / 3);
console.log(mat);

How to output this data as a sum of all responses? 1 Line with sum

Add mat to a total variable, then output the variable after the loop is done. — Barmar
– Barmar, Commented May 11, 2022 at 16:50
make a sum variable and keep adding the new values to it and then print it — Code Fingers
– Code Fingers, Commented May 11, 2022 at 16:50
You could increment the value of mat by the parseFloat amount each time, rather than keep reassigning the value. Also, you could refactor the function with a Array.reduce method. — Bumhan Yu
– Bumhan Yu, Commented May 11, 2022 at 16:51

PHP Newbie · Accepted Answer · 2022-05-11 17:52:57Z

1

Thanks Anas Abdullah Al Changed it a little and it worked, was getting 'NaN' previously

var meshInstances = entity.model.meshInstances;
var mat;
var total = 0;
for (var i = 0; i < meshInstances.length; i++) {
    //  mat = meshInstances[i].mesh.vertexBuffer.numVertices;
    mat = parseFloat(meshInstances[i].mesh.indexBuffer[0].numIndices / 3);
    total += mat;
}
console.log(total);

answered May 11, 2022 at 17:52

PHP Newbie

3310 bronze badges

Sign up to request clarification or add additional context in comments.

Comments

Anas Abdullah Al · Accepted Answer · 2022-05-11 17:18:45Z

0

You can do something like this...

var meshInstances = entity.model.meshInstances;
var mat, total;
for (var i = 0; i < meshInstances.length; i++) {
    //  mat = meshInstances[i].mesh.vertexBuffer.numVertices;
    mat = parseFloat(meshInstances[i].mesh.indexBuffer[0].numIndices / 3);
    total += mat;
}
console.log(total);

answered May 11, 2022 at 17:18

Anas Abdullah Al

2412 silver badges7 bronze badges

Collectives™ on Stack Overflow

How to calculate sum of multiple responses in javascript?

2 Answers 2

Comments

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Related