is-es5-identifier-name

Check if provided string is an IdentifierName as specified in ECMA262 edition 5.1 section 7.6.

Installation

yarn add @prettier/is-es5-identifier-name

Usage

import isEs5IdentifierName from "@prettier/is-es5-identifier-name";

isEs5IdentifierName("prettier");
// -> true

isEs5IdentifierName("16");
// -> false