Different Types of Comparator Techniques in Javascript

Hitendra Feb 23, 2025
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Comparator Techniques in Node.js (JavaScript)

In Node.js, comparison is typically done using functions passed to array methods.

a. Using sort() with Custom Comparator

Example:

class Product {
    constructor(name, price) {
        this.name = name;
        this.price = price;
    }
}

const products = [new Product('Apple', 1.2), new Product('Banana', 0.5)];
products.sort((a, b) => a.price - b.price);

b. Using External Libraries (e.g., Lodash)

Example:

const _ = require('lodash');
const sortedByName = _.sortBy(products, ['name']);

Best Practices

  • Use sort() for simple comparisons.

  • Use libraries like Lodash for complex sorting.