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developer-roadmap/roadmaps/javascript/content/islooselyequal@PLallt_T33W6bUEn0Hc3W.md
Arik Chakma 274082fd77 feat: clean roadmap content and sync scripts (#10181)
* refactor: clean to roadmap content

* refactor: move shared helpers into scripts/lib
2026-07-28 05:45:17 +06:00

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# isLooselyEqual
The abstract equality comparison (loose equality) is the algorithm behind the `==` operator. It defines the rules for how values of different types are coerced before comparison. For example, `null == undefined` is `true`, but `null == 0` is `false`. Understanding this algorithm explains many of JavaScript's surprising equality behaviors.
Visit the following resources to learn more:
- [@article@Loosely Equality (==) Operator](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Equality)
- [@article@Comparison - javascript.info](https://javascript.info/comparison)