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compare-func

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compare-func

Get a compare function for array to sort

  • 2.0.0
  • latest
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decreased by-10.58%
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What is compare-func?

The compare-func npm package provides a simple way to create comparator functions for sorting arrays in JavaScript. It is particularly useful when you need to sort objects based on one or more of their properties. The package allows for easy creation of comparators using property names, custom getter functions, or multiple criteria.

What are compare-func's main functionalities?

Sorting by property name

This feature allows sorting an array of objects based on a specific property. In the provided code, an array of users is sorted by the 'age' property.

const compare = require('compare-func');
let users = [
  { name: 'Alice', age: 25 },
  { name: 'Bob', age: 20 },
  { name: 'Carol', age: 30 }
];
users.sort(compare('age'));
console.log(users);

Sorting by multiple criteria

This feature enables sorting based on multiple properties. The array of users is first sorted by 'name' and then by 'age' if the names are the same.

const compare = require('compare-func');
let users = [
  { name: 'Alice', age: 25 },
  { name: 'Bob', age: 20 },
  { name: 'Carol', age: 30 }
];
users.sort(compare(['name', 'age']));
console.log(users);

Sorting using a custom getter function

This feature allows for sorting using a custom function that defines the sorting criteria. Here, users are sorted based on the length of their names.

const compare = require('compare-func');
let users = [
  { name: 'Alice', age: 25 },
  { name: 'Bob', age: 20 },
  { name: 'Carol', age: 30 }
];
users.sort(compare(u => u.name.length));
console.log(users);

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Package last updated on 15 May 2020

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