isEqual

The isEqual function compares two values to determine if they are equivalent in structure and content, including objects, arrays, and primitive types.

Syntax

isEqual(value1, value2): boolean

Parameters

Name	Type	Description
value1	any	First value to compare.
value2	any	Second value to compare.

Return

Type	Description
boolean	Returns true if the values are equivalent, otherwise false.

Examples

isEqual({ a: 1 }, { a: 1 }); // true
isEqual([1, 2], [1, 2]); // true
isEqual({ a: 1 }, { a: 2 }); // false
isEqual([1, 2], [2, 1]); // false
isEqual(5, 5); // true
isEqual('abc', 'abc'); // true

Notes

• Performs deep equality comparison for objects and arrays.
• May not work correctly with objects that have non-enumerable properties or symbols.

References

• MDN: Object.is()
• MDN: JSON.stringify()