defer

This Boolean attribute is set to indicate to a browser that the script is meant to be executed after the document has been parsed, but before firing <code><a title="/en-US/docs/Web/Events/DOMContentLoaded" href="/en-US/docs/Web/Events/DOMContentLoaded">DOMContentLoaded</a></code>. This attribute must not be used if the <code>src</code> attribute is absent (i.e. for inline scripts), in this case it would have no effect. To achieve a similar effect for dynamically inserted scripts use <code>async=false</code> instead. Scripts with the <code>defer</code> attribute will execute in the order in which they appear in the document.