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Lodash _.isEqual

Overview

lodash's _.isEqual method is a utility function that compares two values for strict equality. Specifically, it checks if the two values passed are identical in terms of both their values and their types.

The _.isEqual method works by recursively comparing the properties of the two values passed, returning true if all properties match and false otherwise. It is important to note that the comparison is done based on the object's constructor rather than the object's specific instance.

The _.isEqual method can be used to compare all types of values, including primitive types (such as strings, numbers, and booleans) and complex data types (such as objects and arrays). It is particularly useful in comparing objects and arrays with nested structures.

The _.isEqual method is often used in deep comparison scenarios, where comparing objects by reference is not sufficient. It is also commonly used in unit testing, where ensuring the equality of expected and actual values is essential.

Overall, _.isEqual is a powerful and versatile tool for comparing values in JavaScript. Its ability to handle complex data structures and its strict comparison mechanism make it a useful tool for a variety of applications.