Numbers are used to represent both integer and floating-point values.

Numbers are most commonly expressed in literal forms like 255 or 3.14159 ↴

let num1 = 5; → number

let num2 = 2.5; → number

let num3 = num1 + num2;

console.log(num3); returns ↴

7.5 → number

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Exponentiation

Exponentiation is the mathematical process of multiplying a number by itself, raised to the power of another number.

base ^exponent

base number to multiply.

exponent number of times to multiply the base by itself.

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Find the power of a number using the exponentiation operator

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Exponentiation operator **

The exponentiation operator ** is used to calculate the power of a number.

3 ** 4 3⁴ 3 × 3 × 3 × 3 → 81

3 ** 3 3³ 3 × 3 × 3 → 27

3 ** 2 3² 3 × 3 → 9

3 ** 1 3¹ → 3

3 ** 0 3⁰ → 1

3 ** -1 3^-1 → 1/3

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Initialize a variable to hold the base value.

const num1 = 3; → user input

Initialize a variable to hold the exponent value.

const num2 = 4; → user input

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Define a function findPower to find the power of a number.

function findPower(str) {}

The function takes two numbers as input num1, num2 representing the base and exponent and returns the result of raising the base to the power of the exponent.

num1 → base

num2 → exponent

Using the exponent operator ** return the result of the base raised to the power of exponent.

return base ** exponent

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Call the function with ↴

findPower(num1, num2);

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Find 3 to the power of 4 → 3⁴

const num1 = 3;

const num2 = 4;

function findPower(base, exp) {

return base ** exp;

}

call function

findPower(num1, num2); returns ↴

81