Typescript Float type with examples

Typescript Float type with examples

This tutorial explains how to declare and assign float values in TypeScript.

TypeScript language provides the following types to store numeric values:

  • number type to store primitive values.
  • Number type to store objects.

Numeric numbers can contain values such as:

  • Integers such as -2, 0, -1.
  • Float numbers such as 1.68, 7.45.

Typescript float type

A float is a numeric value with decimals or fractions. It is declared using normal variable syntax and assigned floating-point values.

let price: number = 1.23;

let totalCost: number;
totalCost = 2 * number;

Check if a Given Number is a Float or Not

You can determine if a number is a float by using the remainder operator (%) with 1.

const checkForFlat = (input: number): boolean => {
  return value % 1 !== 0;
};
console.log(checkForFlat(2.9)); // return true
console.log(checkForFlat(11.0)); // false 
console.log(checkForFlat(3)); // false