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How to sort array of objects by string property value with JavaScript?

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To sort array of objects by string property value with JavaScript, we use the sort method.

For instance, we write

const compare = (a, b) => {
  if (a.lastName < b.lastName) {
    return -1;
  }
  if (a.lastName > b.lastName) {
    return 1;
  }
  return 0;
};

const sorted = objs.sort(compare);

to call sort with the compare function to return a number determining the order of the items.

We return -1 if a.lastName is before b.lastName.

We return 1 if a.lastName is after b.lastName.

And we return 0 otherwise.

An array with the values sorted by the lastName property of each object is returned.

By John Au-Yeung

Web developer specializing in React, Vue, and front end development.

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