Push array of objects in JSON file to Javascript array [duplicate]

I am trying to store JSON file content into a Javascript array, but I am getting an empty array as result.

const displayTask = () => {
  let text = [];
  fs.readFile(fileConfig, (err, data) => {
    if (err) throw err;
    const content = JSON.parse(data);
    for (let task in content) {
      text.push(task);
    }
  });
  console.log(text);
};

output -> []

The type of JSON data is:

Thanks to everyone, found the correct solution:

const displayTask = async() => {
return await new Promise((resolve, reject) => {
    fs.readFile(fileConfig, (err, data) => {
        if(err) throw err;
        text = JSON.parse(data);
        console.log(text);
        resolve();
    })
})

};