Type Editor / @type-editor/changeset / simplify-changes/is-letter / isLetter
Function: isLetter()
ts
function isLetter(code): boolean;Defined in: simplify-changes/is-letter.ts:45
Determines whether a character code represents a letter or digit.
For ASCII characters, checks if the code is in the alphanumeric range. For non-ASCII characters, uses Unicode properties if available, otherwise checks for case changes or single-case script membership.
Parameters
| Parameter | Type | Description |
|---|---|---|
code | number | The character code to test. |
Returns
boolean
True if the character is a letter or digit, false otherwise.