Uploaded January 2014 | Updated September 2026, 2 weeks ago
Inserting into a C# List using InsertRange() may require the C# List to enlarge itself (thus copying elements from the old underlying array to a new underlying array) and then copy again to shuffle items down the array to make room for the new items. In our C# List InsertRange() method, we dodge the extra copy by placing the copied items where they should be in the first place. We trade memory and some time overhead for a huge speed gain.
Inserting into a C# List using InsertRange() may require the C# List to enlarge itself (thus copying elements from the old underlying array to a new underlying array) and then copy again to shuffle items down the array to make room for the new items. In our C# List InsertRange() method, we dodge the extra copy by placing the copied items where they should be in the first place. We trade memory and some time overhead for a huge speed gain.
