isFloat

The isFloat function checks if a value is a finite floating-point number.

Syntax

isFloat(value)

Parameters

Name	Type	Description
value	number	Value to be checked.

Return Value

Type	Description
boolean	true if the value is a finite floating-point number, else false.

Examples

isFloat(3.14); // true
isFloat(10);   // false
isFloat(NaN);  // false

Notes

• Throws a TypeError if the value is not a number.
• Useful for mathematical validations and distinguishing between integers and floats.

References

• MDN: Number.isFinite()