javascript: All device data is read into the object

Question

When I write Javascript, I want to read all the data of the device into the object, but only the last one is read. I would like to ask how I can read all the data in the device into obj, thank you.

let data = [
      {
          "bind": "82218018295591013",
          "account": "admin",
          "password": "0000",
          "devices": [
              {
                  "ip": "192.168.0.88",
                  "brand_name": "UNIVIEW",
                  "name": "UNIVIEW"
              }
          ]
      },
      {
          "bind": "94907378021478863",
          "account": "admin",
          "password": "0000",
          "devices": [
              {
                  "ip": "192.168.0.88",
                  "brand_name": "UNIVIEW",
                  "name": "UNIVIEW"
              },
              {
                  "ip": "192.168.0.89",
                  "brand_name": "hisharp",
                  "name": "hisharp"
              }
          ]
      }
  ]
  
  let obj = {};
  
  function getObj() {
      for (let i = 0; i < data.length; i++) {
          for (let j = 0; j < data[i].devices.length; j++) {
              obj.devices = data[i].devices[j];
          }
      }

      return obj;
  }

  console.log('obj :>> ', obj);
  getObj();