JavaScript Math cbrt()

// cube root of 8
let number = Math.cbrt(8);
console.log(number);

// Output: 2

cbrt() Syntax

The syntax of the Math.cbrt() method is:

Math.cbrt(number)

Here, cbrt() is a static method. Hence, we are accessing the method using the class name, Math.

cbrt() Parameter

The cbrt() method takes a single parameter:

• number - value whose cube root is to be calculated

cbrt() Return Value

The cbrt() method returns:

• the cube root of a given number
• NaN (Not a Number) if the argument is non-numeric

Example 1: JavaScript Math.cbrt()

// cbrt() with an integer number
let number1 = Math.cbrt(27);
console.log(number1);

// cbrt() with a decimal number
let number2 = Math.cbrt(64.144);
console.log(number2);

// Output:
// 3
// 4.002997752808288

Here, we have used the Math.cbrt() method to compute the cube root of an integer value, 27 and a decimal value, 64.144.

Example 2: cbrt() with Numeric String

// cbrt() with a numeric string
let number2 = Math.cbrt("125");
console.log(number2);

// Output: 5

In the above example, the Math.cbrt() method converts the numeric string "125" into a number and then computes its cube root.

Example 3: Cube Root of String Argument

let string = "Harry";

// cbrt() with string as argument
let number = Math.cbrt(string);
console.log(number);

// Output: NaN

In the above example, we have tried to calculate the cube root of the string "Harry". That's why we get NaN as the output.

Recommended readings:

• JavaScript Math sqrt()
• JavaScript Math pow()