# defer

A Boolean classic-script attribute that delays execution until parsing finishes while preserving document order.

## What is **`defer`**?

**`defer`** — A Boolean classic-script attribute that delays execution until parsing finishes while preserving document order.

Level: Journeyman · [More HTML terms at this level](https://www.ask-codey.com/glossary/subjects/html/journeyman)

Updated: September 27, 2026

Source: https://www.ask-codey.com/glossary/defer