我正在尝试读取来自python（database mongodb）的数组，并在上下文菜单子菜单中读取它

Question

So, I am trying to read the array coming from python and python is calling mongodb. As I am trying to read the array, I am getting each character from the array. Like the code is reading the array as a string.

I have tried reading this code in various ways but always getting stuck. First, I am reading the value and putting it in a const variable. Then I am creating a for loop to loop through the array and display each item like '1 - client 1'...

var displayClient = [];
const clients = document.getElementById("clients").value;
var clients_array = clients;
console.log(clients);

var itemDisp = [];
var arrayLength = clients_array.length;

//looping through the objects inside the object
for (var i = 0; i < arrayLength; i++) {
    var client = clients_array[i].toString().split(',');
    displayClient.push(client[0] + ' - ' + client[1]);
    itemDisp.push({ label: displayClient[i]});  
}

//calling to diplay in the context menu
return { 
    "AddClient" : {
    label: "Add Client",                        
    "submenu": itemDisp, 
    disabled: false
}

//the array which I am trying to read
[['1', 'client 1'], ['2', 'client 2']]

the expected result is, to display something like; 1 - client 1... While the actual result is; [ - undefined, [ - undefined, ' - undefined...

Answer 1

try this:

return { 
   "AddClient" : {
     label: "Add Client",                        
     "submenu": itemDisp, 
     disabled: false
  }
}

I make this and work:

var displayClient = [];
const clients = [['1', 'client 1'], ['2', 'client 2']];
var clients_array = clients;
console.log(clients);

var itemDisp = [];
var arrayLength = clients_array.length;

//looping through the objects inside the object
for (var i = 0; i < arrayLength; i++) {
  var client = clients_array[i].toString().split(',');
  displayClient.push(client[0] + ' - ' + client[1]);
  itemDisp.push({ label: displayClient[i]});  
}

//calling to diplay in the context menu
let test = { 
  "AddClient" : {
    label: "Add Client",                        
    "submenu": itemDisp, 
    disabled: false
  }
}

console.log(test);
console.log(itemDisp);

Answer 2

I am not able to understand your code but I might understood your problem. This code can help you get the desired output :-

`

var itemDisp = [];
const clients = document.getElementById("clients").value;
try{
    // This line will parse your array string into JS array object
    var clientsArray = JSON.parse(clients.replace(/'/g,"\""));

    for(var internalArray of clientsArray){
        itemDisp.push({label : internalArray.join(" - ")});
    }
}catch(e){
    console.error("String provided is not a valid array string");
}

console.log(itemDisp);

`