isNumber
The isNumber function checks if the provided value is of type number.
Syntax
typescript
isNumber(value: any): value is number;Parameters
| Parameter | Type | Description |
|---|---|---|
value | any | Value to be checked |
Returns
| Type | Description |
|---|---|
boolean | True if it is a number |
Examples
typescript
isNumber(123); // => true
isNumber("123"); // => falseNotes
- Useful for validating numeric values before mathematical operations.