HTMLScriptElement

Baseline *

20157

HTML <script> HTMLScriptElement <script> HTMLElement

JavaScript text/javascript MIME (image/*) (video/*) (audio/*) text/csv error load

EventTarget Node Element HTMLElement HTMLScriptElement

HTMLElement

HTMLScriptElement.attributionSrc: <script> attributionsrc attributionsrc Attribution-Reporting-Eligible Attribution-Reporting-Register-Source Attribution-Reporting-Register-Trigger JavaScript
HTMLScriptElement.async: async true async true
HTMLScriptElement.blocking: <script> blocking
HTMLScriptElement.charset: charset
HTMLScriptElement.crossOrigin: script CORS
HTMLScriptElement.defer: defer true DOMContentLoaded defer
HTMLScriptElement.event: HTML
HTMLScriptElement.fetchPriority: high low auto <script> fetchpriority
HTMLScriptElement.integrity: <script> integrity
HTMLScriptElement.noModule: true ES JavaScript
HTMLScriptElement.referrerPolicy: HTML referrerPolicy
HTMLScriptElement.src: URL src <script> src
HTMLScriptElement.text: <script> Text Node.textContent

: Document.write() <script> Element.innerHTML Element.outerHTML
HTMLScriptElement.type: MIME <script> type

HTMLScriptElement.supports_static: true false

HTMLElement

<script> <script> document.currentScript defer async

function loadError(oError) {
  throw new URIError(` ${oError.target.src} `);
}

function prefixScript(url, onloadFunction) {
  const newScript = document.createElement("script");
  newScript.onerror = loadError;
  if (onloadFunction) {
    newScript.onload = onloadFunction;
  }
  document.currentScript.parentNode.insertBefore(
    newScript,
    document.currentScript,
  );
  newScript.src = url;
}

document.currentScript <head>

function loadError(oError) {
  throw new URIError(` ${oError.target.src} `);
}

function affixScriptToHead(url, onloadFunction) {
  const newScript = document.createElement("script");
  newScript.onerror = loadError;
  if (onloadFunction) {
    newScript.onload = onloadFunction;
  }
  document.head.appendChild(newScript);
  newScript.src = url;
}

affixScriptToHead("myScript1.js");
affixScriptToHead("myScript2.js", () => {
  alert(' "myScript2.js" ');
});

HTMLScriptElement.supports_static

noModule

function checkModuleSupport() {
  if ("supports" in HTMLScriptElement) {
    return HTMLScriptElement.supports("module");
  }
  return "noModule" in document.createElement("script");
}


HTML # htmlscriptelement

MDN

MDN 2025722

GitHub