Module identifier 

Functions

is_js_keyword

Returns whether the given string is a JS keyword.

is_non_value_js_keyword

Returns whether the given string is a JS keyword that does NOT behave like a value.

is_valid_ident

Returns whether a string is a valid JavaScript identifier. Defined at https://tc39.es/ecma262/#prod-IdentifierName.

to_valid_ident

Converts a string to a valid JavaScript identifier by replacing invalid characters with underscores.