requireValidPresentationId

function requireValidPresentationId(
  value: unknown,
  message: string = "Expected a valid presentation id."
): string;

At least 25 characters of letters, digits, hyphens and underscores — the id from a Slides URL. The format is all that is checked.

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
`value`	`unknown`	The value to validate.
`message` (optional) `= "Expected a valid presentation id."`	`string`	The message of the exception. A default is used when omitted.

Returns

string — the same value, typed as a presentation id.

Throws

Exception	Condition
`IllegalArgumentException`	the value is not a presentation id.

Examples

What passes and what does not

requireValidPresentationId("1BxiMVs0XRA5nFMdKvBdBZjgmUUqptlbs74OgvE2upms"); // => "1BxiMVs0XRA5nFMdKvBdBZjgmUUqptlbs74OgvE2upms"
requireValidPresentationId("short-id"); // throws IllegalArgumentException
requireValidPresentationId("has space in it and is long enough to pass"); // throws IllegalArgumentException

Source

src/appsscript/slide/requireValidPresentationId.ts

23 September 2026

This documentation was generated with AI (Claude) from the library's source code.

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