JavaScriptCodeSnippets/FilterByValue.js at master · rnagasudhakar/JavaScriptCodeSnippets · GitHub

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const filterObject = (arr, aggVal) => {
  if (typeof aggVal === "number") {
    return arr[aggVal];
  }

  // //   for (const entry of arr){
  // //     for (const [key, value] of Object.entries(entry)) {
  // //     } second approach
  //   }

  const values = Object.values(arr);
  const obj = [];
  for (let i = 0; i < values.length; i++) {
    const keys = Object.keys(values[i]);
    let flg = 0;
    for (let j = 0; j < keys.length; j++) {
      if (arr[i][keys[j]] === aggVal) {
        flg = 1;
        break;
      }
    }
    if (flg == 1) {
      obj.push(values[i]);
    }
  }
  if (obj.length === 0) {
    return -1;
  }
  return obj;
};

const arr = [
  { name: "Amir", id: "1" },
  { name: "Samlan", id: "2" },
  { name: "Shahrukh", id: "0" },
];

console.log(filterObject(arr, 0));
console.log(filterObject(arr, "Amir"));
console.log(filterObject(arr, "0"));
console.log(filterObject(arr, "-1"));

// Output:
// { name: "Amir", id: "1" }
// { name: "Amir", id: "1" }
// { name: "Shahrukh", id: "0" }
// undefined