**Contents**show

## Is NaN a PHP function?

The is_nan() function checks **whether a value is ‘not a number’**. This function returns true (1) if the specified value is ‘not-a-number’, otherwise it returns false/nothing.

## How do you check if a number is a NaN?

The Number. **isNaN() method** determines whether a value is NaN (Not-A-Number). This method returns true if the value is of the type Number, and equates to NaN. Otherwise it returns false.

## Is NaN an example?

Short for not a number, in mathematics and computer programming NaN is **an undefined or unrepresentable value**, especially in floating-point calculations. For example, 0/0 or the square root of a negative number would return a NaN result.

## Is NaN a value?

NaN stands **for Not A Number** and is one of the common ways to represent the missing value in the data. It is a special floating-point value and cannot be converted to any other type than float. NaN value is one of the major problems in Data Analysis.

## What is NaN used for?

Stands for “**Not a Number**.” NaN is a term used in mathematics and computer science to describe a non-numeric value. It may also be a placeholder for an expected numeric result that cannot be defined as a floating point number.

## Is NaN a Number?

In computing, NaN (/næn/), **standing for Not a Number**, is a member of a numeric data type that can be interpreted as a value that is undefined or unrepresentable, especially in floating-point arithmetic.

## How do you prevent NaN?

**Here are 4 methods to avoid NaN values.**

- Avoid #1: Mathematical operations with non-numeric string values. …
- Avoid #2: Mathematical operations with functions. …
- Avoid #3: Mathematical operations with objects. …
- Avoid #4: Mathematical operations with falsy values. …
- Conclusion.

## Is NaN a float?

Short Intro. NaN stands for Not A Number and is a common missing data representation. It is **a special floating-point value** and cannot be converted to any other type than float. … NaN can be seen like some sort of data virus that infects all operations it touches.

## Is NaN typescript?

NaN in Typescript stands for **Not a Number**. It is the result of numerical operations, where result is not a number . It is the property of the global object. You can refer it either as NaN or Number.

## What is NaN equal to?

NaN is a property of the global object. In other words, it is a variable in global scope. The initial value of NaN is Not-A-Number — **the same as the value of Number**. … There are five different types of operations that return NaN : Number cannot be parsed (e.g. parseInt(“blabla”) or Number(undefined) )