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Author: kgryte

lib/node_modules/@stdlib/array/filled-by/lib/main.js

@@ -356,6 +356,7 @@ function filledarrayBy() {
 		}
 		throw new TypeError( 'invalid argument. Must provide a length, typed array, array-like object, or an iterable. Value: `'+arg+'`.' );
 	}
+	// TODO: there are possible performance improvements here. Namely, for array-like object and iterator source values, we need only know the length; otherwise, we traverse an output array twice, setting values along the way both times.
 	if ( nargs === 0 ) {
 		arr = new ctor( arguments[0] );
 	} else if ( nargs === 1 ) {