requireValidSlideId
function requireValidSlideId(
value: unknown,
message: string = "Expected a valid slide id."
): string;
Letters, digits, hyphens and underscores, at least one of them. Slide ids are short — p1 is a perfectly ordinary one — so no minimum length is imposed.
isX and nonX answer a question and never interrupt control flow; requireX and requireNonX hand the value back or throw. The scheme is explained in Validation conventions.
Parameters
Parameter | Type | Description |
|---|---|---|
|
| The value to validate. |
|
| The message of the exception. A default is used when omitted. |
Returns
string — the same value, typed as a slide id.
Throws
Exception | Condition |
|---|---|
| the value is not a slide id. |
Examples
What passes and what does not
requireValidSlideId("p1"); // => "p1"
requireValidSlideId("SLIDES_api123"); // => "SLIDES_api123"
requireValidSlideId("has space"); // throws IllegalArgumentException
requireValidSlideId(""); // throws IllegalArgumentException
See also
Source
23 September 2026
This documentation was generated with AI (Claude) from the library's source code.