Search match to autofill text inputs google sheets - google-apps-script

Question

i'm trying to do a match and return function: search barcode and a size value in a sheet, and add it to a textbox in a sidebar
something went wrong - script do not return any values
var barcodeBox = document.getElementById("bcdn");
var typeBox = document.getElementById("stype");
var sizeBox = document.getElementById("size");
document.getElementById("butn").addEventListener("click",addRecord);
document.getElementById("bcdn").addEventListener("input",getStype);
function getStype(){
var bCode = document.getElementById("bcdn").value;
if(bCode.length === 10){
google.script.run.withSuccessHandler(updateSize).getSize(bCode);
}else{
document.getElementById("size").value = "-";
M.updateTextFields();
} // end Else
} // end getStype
function updateSize(size){
document.getElementById("size").value = size;
M.updateTextFields();
}
this is gs code
function getSize(bCode){
var ws = SpreadsheetApp.getSheetByName("Barcode List");
var data = ws.getRange(1,1,ws.getLastRow(),2).getValues();
var bCodeList = data.map(function(r){return[0];});
var sizeList = data.map(function(r){return[1];});
var position = bCodeList.indexOf(bCode);
if(position > -1){
return sizeList[position].toFixed(2);
}else{
return "";
}

Answer 1

bCode seems to be just a value but bCodeList is an array of arrays so bCodeList.indexOf(bCode) is probably always going to be -1
Maybe change this var bCodeList = data.map(function(r){return[0];});
to this var bCodeList = data.map(r => 0);
Of course sizeList has the same problem

Answer 2

Missing get spreadsheet
Wrong return of map
Not converting [][] into [] for indexOf
var ws = SpreadsheetApp.getActiveSpreadsheet().getSheetByName("Barcode List");
var data = ws.getRange(1,1,ws.getLastRow(),2).getValues();
var bCodeList = data.map(function(r){return r[0];}).flat();
var sizeList = data.map(function(r){return r[1];}).flat();