Function injectScriptsIntoHtml

packages/core/src/compiler/htmlDocument.ts:189–221

(
  html: string,
  headScripts: readonly string[],
  bodyScripts: readonly string[],
  stripEmbeddedRuntime = true,
)

}

export function injectScriptsIntoHtml(
  html: string,
  headScripts: readonly string[],
  bodyScripts: readonly string[],
  stripEmbeddedRuntime = true,
): string {
  if (stripEmbeddedRuntime) {
    html = stripEmbeddedRuntimeScripts(html);
  }

  if (headScripts.length > 0) {
    const headTags = inlineScriptTags(headScripts);
    if (html.includes("</head>")) {
      // Function replacement avoids `$&` interpolation in runtime source.
      html = html.replace("</head>", () => `${headTags}\n</head>`);
    } else if (html.includes("<body")) {
      html = html.replace("<body", () => `${headTags}\n<body`);
    } else {
      html = `${headTags}\n${html}`;
    }
  }

  if (bodyScripts.length > 0) {
    const bodyTags = inlineScriptTags(bodyScripts);
    if (html.includes("</body>")) {
      html = html.replace("</body>", () => `${bodyTags}\n</body>`);
    } else {
      html = `${html}\n${bodyTags}`;
    }
  }

  return html;
}