Check if a string is a valid JavaScript identifier
npm install is-identifier> Check if a string is a valid JavaScript identifier
``sh`
npm install is-identifier
`js
import isIdentifier from 'is-identifier';
isIdentifier('foo');
//=> true
isIdentifier('1kg');
//=> false
isIdentifier('await'); // Reserved identifier
//=> false
`
> [!NOTE]
> Although globalThis, Infinity, NaN, and undefined` are properties of the global object and not identifiers, they are treated as reserved here because they should generally not be used as identifiers.
Returns a boolean for whether the given value is a valid JavaScript identifier.
- to-valid-identifier - Convert a string to a valid JavaScript identifier
- identifier-regex - Regular expression for matching valid JavaScript identifiers
- reserved-identifiers - Provides a list of reserved identifiers for JavaScript