prefer-exponentiation-operator.md

title	layout	edit_link	rule_type	further_reading
prefer-exponentiation-operator	doc	https://github.com/eslint/eslint/edit/main/docs/src/rules/prefer-exponentiation-operator.md	suggestion	https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Exponentiation https://bugs.chromium.org/p/v8/issues/detail?id=5848

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;

When Not To Use It

This rule should not be used unless ES2016 is supported in your codebase.