prefer-exponentiation-operator

The --fix option on the command line can automatically fix some of the problems reported by this rule.

Disallows the use of Math.pow in favor of the ** operator.

Introduced in ES2016, the infix exponentiation operator ** is an alternative for the standard Math.pow function.

Infix notation is considered to be more readable and thus more preferable than the function notation.

Rule Details

This rule disallows calls to Math.pow and suggests using the ** operator instead.

Examples of incorrect code for this rule:

/*eslint prefer-exponentiation-operator: "error"*/

const foo = Math.pow(2, 8);

const bar = Math.pow(a, b);

let baz = Math.pow(a + b, c + d);

let quux = Math.pow(-1, n);

Examples of correct code for this rule:

/*eslint prefer-exponentiation-operator: "error"*/

const foo = 2 ** 8;

const bar = a ** b;

let baz = (a + b) ** (c + d);

let quux = (-1) ** n;

prefer-exponentiation-operator

Rule Details

When Not To Use It

Further Reading

Version

Resources