isValid¶

Tests whether a string matches the browser ISO-like date pattern.

DateTimeOffset.isValid(val: string):( RegExpMatchArray | "null" )

Parameters¶

string val
    The text to test.

Returns¶

The regular-expression match used by the browser parser, or null when the text does not match.

Remarks¶

Browser form scripts only; server workflow scripts should call parse and handle an error for invalid input.