JSFiddle - React, Tailwind, and code Playground

by irinablue

JavaScript

const data = [
  {
    "k": "3",
    "v": null
  },
  {
    "k": "15",
    "v": "0"
  },
  {
    "k": "18",
    "v": "0"
  },
  {
    "k": "19",
    "v": "0"
  },
  {
    "k": "31",
    "v": "0"
  },
  {
    "k": "34",
    "v": "691590"
  },
  {
    "k": "36",
    "v": "0.40251589"
  },
  {
    "k": "37",
    "v": "main"
  },
  {
    "k": "42",
    "v": null
  },
  {
    "k": "43",
    "v": "bskidcxvOCnxg73T4i3wtgkYXmNN79Il2wNmyPwyr4c07"
  },
  {
    "k": "48",
    "v": null
  },
  {
    "k": "50",
    "v": null
  },
  {
    "k": "58",
    "v": "false"
  },
  {
    "k": "[DRAFT] 202",
    "v": "category"
  }
];

for (const [index, item] of data.entries()) {
    if (item.v === null) console.log(index);
}