Detecting NaN in JavaScript

JavaScript's NaN (Not a Number) value represents the result of an undefined or unrepresentable mathematical operation. Accurately identifying NaN is crucial for robust error handling and data validation in JavaScript applications, preventing unexpected behavior and ensuring data integrity. This challenge asks you to write a function that reliably checks if a given value is NaN.

Problem Description

You are tasked with creating a JavaScript function called isNanCheck that takes a single argument, value, and returns true if the value is NaN, and false otherwise. The function should handle various input types, including numbers, strings, booleans, and objects. It's important to use the correct method for checking NaN as direct comparison (value === NaN) will always return false.

Key Requirements:

• The function must be named isNanCheck.
• It must accept a single argument, value.
• It must return a boolean value (true or false).
• It must correctly identify NaN values regardless of their type.
• It must not throw an error for any valid JavaScript input.

Expected Behavior:

The function should return true for any value that is NaN. It should return false for all other values, including numbers, strings, booleans, null, undefined, and objects.

Edge Cases to Consider:

• The input value might be a number that is actually NaN.
• The input value might be a string that can be coerced to a number, resulting in NaN.
• The input value might be a non-numeric type (string, boolean, object, etc.).
• The input value might be null or undefined.

Examples

Example 1:

Input: NaN
Output: true
Explanation: NaN is the standard Not-a-Number value in JavaScript.

Example 2:

Input: 0 / 0
Output: true
Explanation: 0 / 0 results in NaN.

Example 3:

Input: "abc"
Output: false
Explanation: "abc" cannot be converted to a number and is not NaN.

Example 4:

Input: 123
Output: false
Explanation: 123 is a valid number and not NaN.

Example 5:

Input: null
Output: false
Explanation: null is not NaN.

Example 6:

Input: undefined
Output: false
Explanation: undefined is not NaN.

Constraints

• The function must be written in JavaScript.
• The function must not use any external libraries.
• The function should be efficient and avoid unnecessary computations.
• The input value can be of any valid JavaScript type.

Notes

Remember that NaN is the only value in JavaScript that is not equal to itself (NaN !== NaN). Use the Number.isNaN() method or the global isNaN() function (with caution, see below) to correctly check for NaN. Be aware that the global isNaN() function can produce unexpected results when used with non-numeric values due to its type coercion behavior. Number.isNaN() is generally preferred as it avoids this coercion. Your solution should prioritize accuracy and avoid potential pitfalls of the global isNaN() function.