Is there a map function for objects in Node.js?

In JavaScript, the map function is typically used with arrays to transform each element of the array based on a provided callback function. If you want to achieve a similar result with objects, you can use a combination of Object.keys() and map to iterate over the keys of the object and transform their corresponding values.

Here's an example of how you can use the map function with objects:

const myObject = {
  key1: 'value1',
  key2: 'value2',
  key3: 'value3'
};

// Using Object.keys() to get an array of keys and then using map
const transformedObject = Object.fromEntries(
  Object.keys(myObject).map(key => [key, myObject[key] + '_modified'])
);

console.log(transformedObject);

In this example:

• Object.keys(myObject) is used to get an array of keys from the object.
• The map function is then used to iterate over each key and transform its corresponding value. In this case, we are appending '_modified' to each value.
• Object.fromEntries() is used to convert the array of key-value pairs back into an object.

This results in a new object where each value has been modified based on the transformation applied in the map callback function.

Note that Object.fromEntries() is used here to convert the array of key-value pairs back into an object. This method is available in modern JavaScript environments, so make sure your environment supports it or consider using a polyfill if needed.

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