contentTypeForExtension method
Returns a ContentType for a file extension.
Returns the associated content type for extension
, if one exists. Extension may have leading '.',
e.g. both '.jpg' and 'jpg' are valid inputs to this method.
Returns null if there is no entry for extension
. Entries can be added with setContentTypeForExtension.
Implementation
ContentType? contentTypeForExtension(String extension) {
if (extension.startsWith(".")) {
return _extensionMap[extension.substring(1)];
}
return _extensionMap[extension];
}