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JavaScript Tutorial

Variables to closures, promises, the DOM and OOP — a complete JS reference.

What is Lodash?

A widely-used utility library that provides consistent, well-tested helper functions for arrays, objects, strings and functions.

import debounce from 'lodash/debounce';
import cloneDeep from 'lodash/cloneDeep';

const cloned = cloneDeep(originalObject);
  • Fills gaps that predate native JS methods (many are now redundant with ES6+)
  • Still valuable for deep clone/merge, debounce/throttle and complex grouping
  • Import individual functions (lodash/debounce) to keep bundle size small