how to use the groupby function from lodash in javascript

To use the groupBy function from Lodash in JavaScript, you can follow these steps:

  1. Install lodash using npm or yarn:
index.tsx
npm install lodash
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or

index.tsx
yarn add lodash
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  1. Import the groupBy function from lodash:
const { groupBy } = require('lodash');
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  1. Create an array of objects:
const users = [
  { name: 'John', age: 25, gender: 'male' },
  { name: 'Jane', age: 28, gender: 'female' },
  { name: 'Bob', age: 30, gender: 'male' },
  { name: 'Alice', age: 22, gender: 'female' }
];
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  1. Call the groupBy function and pass the array and the property to group by:
const groupedUsers = groupBy(users, 'gender');

console.log(groupedUsers);
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The output will be:

{
  male: [
    { name: 'John', age: 25, gender: 'male' },
    { name: 'Bob', age: 30, gender: 'male' }
  ],
  female: [
    { name: 'Jane', age: 28, gender: 'female' },
    { name: 'Alice', age: 22, gender: 'female' }
  ]
}
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This groups the array of objects by the gender property and returns an object with two properties: male and female, each containing an array of the corresponding objects.

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