# chars/ident-start?
Check if a character can start an identifier (alpha or `_`).
## Syntax
[chars/ident-start? $ch]
## Parameters
- `$ch` — A single-character string.
## Examples
[chars/ident-start? "a"] # true [chars/ident-start? "_"] # true [chars/ident-start? "0"] # false [chars/ident-start? "-"] # false
## Returns
Boolean. `false` for empty strings.
## See Also
`chars/ident-cont?`, `chars/alpha?`, `chars/word?`