Answers for "update json value node js"

edit json via nodejs

//Using edit-json-file for NodeJS, based off the NPM documentation for edit-file-json
const editJsonFile = require("edit-json-file");
let file = editJsonFile(`${__dirname}/filename.json`);
file.set("name", "value");
file.save();
file = editJsonFile(`${__dirname}/filename.json`, {
    autosave: true
});

update data in json using javascript

function setUsername(id, newUsername) {
  for (var i = 0; i < jsonObj.length; i++) {
    if (jsonObj[i].Id === id) {
      jsonObj[i].Username = newUsername;
      return;
    }
  }
}

// Call as
setUsername(3, "Thomas");