Dynamic global search replace on records

dynamic_search_replace.js

var fields = [
  "name",
  "lastname"
]

var rules = {
  "!": "[uitroepteken]",
  "#": "[hashtag]",
}

var records = [
  {
    id: 1,
    name: "mi!chel"
  },
  {
    id: 2,
    name: "!k ben g#k"
  }
];

// loop door fields
fields.forEach(value => {
  records.forEach(record => {
    // check if the field exists
    if(record[value]) {
      // replace the characters aan de hand van de regels
      Object.entries(rules).forEach((values, index) => {
        let reg = new RegExp(values[0], "g");
        record[value] = record[value].replace(reg, values[1]);
      });
    }
  });
});

console.log(records);