prefer-no-lodash-is-equal

Detects all usages of isEqual from Lodash.

Rationale

Lodash's isEqual may be a costly operation and should be used with caution.

Examples

❌ Examples of incorrect code for this rule

import { isEqual } from 'lodash-es';

if (isEqual(prevObj, currObj)) {
  // ...
}

✅ Examples of correct code for this rule

if (
  prevObj.prop === currObj.prop &&
  prevObj.arr.length === currObj.arr.length &&
  prevObj.arr.every(
    (prevItem, i) =>
      prevItem.x === currObj.arr[i].x && prevItem.y === currObj.arr[i].y
  )
) {
  // ...
}

if (isEqual(prevObj, currObj)) {
  // ...
}

function isEqual<T>(a: T, b: T): boolean {
  return JSON.stringify(a) === JSON.stringify(b);
}