canParse static method
The URL.canParse() static method of the URL interface returns a
boolean indicating whether or not an absolute URL, or a relative URL
combined with a base URL, are parsable and valid.
This is a fast and easy alternative to constructing a URL within a
try...catch
block.
It returns true for the same values for which the URL()
constructor
would succeed, and false for the values that would cause the constructor
to throw.
Implementation
external static bool canParse(
String url, [
String base,
]);