resolveFileExtension static method
Tries to resolve a file extension from path
.
Implementation
static String? resolveFileExtension(String path) {
path = path.trim();
if (path.isEmpty) {
return null;
}
var idx = path.lastIndexOf('.');
if (idx < 0) {
return null;
}
var ext = path.substring(idx + 1);
return ext.isEmpty ? null : ext;
}