How to activate the reduce method with input value,-CodePudding

How to activate the reduce method with input value can anyone help with the modification or the idea

let catchvalue = document.querySelector("input");
let btn = document.querySelector("button");
btn.addEventListener(`click`, function(){
  let emptyarray = [10, 10];
  let totalvalue = emptyarray.unshift(catchvalue.value);
  let averagenumbers = emptyarray.reduce(function(acc, curr){
    return acc   curr;
    let extract = parseInt(emptyarray);
  });
});

CodePudding user response：

NEVER call anything name or ID=submit in a form you want to process with JavaScript –
Nothing will execute after a return statement –
What do expect parseInt(emptyarray); would do? Did you want perhaps to do this? emptyarray.unshift( catchvalue.value); –

Here is my guess what you wanted

let catchvalue = document.getElementById("Amount");
let btn = document.getElementById("calc");
let emptyarray = [10, 10];
btn.addEventListener(`click`, function() {
  let totalvalue = emptyarray.unshift( catchvalue.value);
  let total = emptyarray.reduce((acc, curr) => acc   curr);
  let avg = (total / emptyarray.length).toFixed(2);
  console.log("Average of", emptyarray, "'s total of", total, "is", avg)
});

<input type="text" id="Amount" >
<button type="button" id="calc">Calculate</button>