Document: beforescriptexecute event

Deprecated

Avoid using this feature in new projects. This feature may be a candidate for removal from web standards or browsers.

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Non-standard: This feature is not standardized. We do not recommend using non-standard features in production, as they have limited browser support, and may change or be removed. However, they can be a suitable alternative in specific cases where no standard option exists.

The beforescriptexecute event fires when a static <script> is about to start executing. It does not fire if the element is added dynamically, such as with appendChild().

Syntax

Use the event name in methods like addEventListener(), or set an event handler property.

addEventListener("beforescriptexecute", (event) => { })

onbeforescriptexecute = (event) => { }

Event type

A generic Event.

Examples

function starting(e) {
  logMessage(`Starting script with ID: ${e.target.id}`);
}

document.addEventListener("beforescriptexecute", starting);
// or
document.onbeforescriptexecute = starting;

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