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HtmlService
Es un servicio para mostrar HTML y otro contenido de texto desde una secuencia de comandos.
Debido a consideraciones de seguridad, las secuencias de comandos no pueden mostrar contenido directamente en un navegador. En su lugar, deben limpiar el código HTML para que no pueda realizar acciones maliciosas. Consulta la descripción de HtmlOutput para conocer las limitaciones que esto implica en lo que se puede mostrar.
Obtiene la cadena de usuario-agente del navegador actual. Muestra null para la mayoría de las ejecuciones de secuencias de comandos si no se usa en la función doGet() o doPost() de una app web.
[[["Fácil de comprender","easyToUnderstand","thumb-up"],["Resolvió mi problema","solvedMyProblem","thumb-up"],["Otro","otherUp","thumb-up"]],[["Falta la información que necesito","missingTheInformationINeed","thumb-down"],["Muy complicado o demasiados pasos","tooComplicatedTooManySteps","thumb-down"],["Desactualizado","outOfDate","thumb-down"],["Problema de traducción","translationIssue","thumb-down"],["Problema con las muestras o los códigos","samplesCodeIssue","thumb-down"],["Otro","otherDown","thumb-down"]],["Última actualización: 2025-07-26 (UTC)"],[[["\u003cp\u003eHtmlService enables scripts to safely return HTML and other text content to a browser by sanitizing the output to prevent malicious actions.\u003c/p\u003e\n"],["\u003cp\u003eIt offers methods to create HTML output from strings, files, or blobs, and supports templates for dynamic content generation.\u003c/p\u003e\n"],["\u003cp\u003eHtmlService provides control over sandbox modes and \u003ccode\u003eX-Frame-Options\u003c/code\u003e for enhanced security.\u003c/p\u003e\n"],["\u003cp\u003eDevelopers can utilize HtmlService to build user interfaces and web applications within Google Apps Script.\u003c/p\u003e\n"]]],["HtmlService allows scripts to return sanitized HTML content to browsers, preventing malicious actions. Key actions include creating `HtmlOutput` objects from strings, `BlobSource` resources, or files via `createHtmlOutput()` and `createHtmlOutputFromFile()`. Similarly, `HtmlTemplate` objects can be created using `createTemplate()` and `createTemplateFromFile()` for dynamic content. The `getUserAgent()` method retrieves the current browser's user-agent string. There are `SandboxMode` and `XFrameOptionsMode` properties that can be used for client-side `HtmlService` scripts.\n"],null,["# Class HtmlService\n\nHtmlService\n\nService for returning HTML and other text content from a script.\n\nDue to security considerations, scripts cannot directly return content to a browser. Instead,\nthey must sanitize the HTML so that it cannot perform malicious actions. See the description of\n[HtmlOutput](/apps-script/reference/html/html-output) for what limitations this implies on what can be returned. \n\n### Properties\n\n| Property | Type | Description |\n|---------------------|-----------------------------------------------------------------------|------------------------------------------------------------------------------------------------------------|\n| `Sandbox``Mode` | [SandboxMode](/apps-script/reference/html/sandbox-mode) | An enum representing the sandbox modes that can be used for client-side `Html``Service` scripts. |\n| `XFrameOptionsMode` | [XFrameOptionsMode](/apps-script/reference/html/x-frame-options-mode) | An enum representing the `X-Frame-Options` modes that can be used for client-side `Html``Service` scripts. |\n\n### Methods\n\n| Method | Return type | Brief description |\n|-------------------------------------------------------------------------|-----------------------------------------------------------|----------------------------------------------------------------------------------------------------------------------------------------|\n| [createHtmlOutput()](#createHtmlOutput()) | [HtmlOutput](/apps-script/reference/html/html-output) | Creates a new [HtmlOutput](/apps-script/reference/html/html-output) object that can be returned from the script. |\n| [createHtmlOutput(blob)](#createHtmlOutput(BlobSource)) | [HtmlOutput](/apps-script/reference/html/html-output) | Creates a new [HtmlOutput](/apps-script/reference/html/html-output) object from a [BlobSource](../base/blob-source.html) resource. |\n| [createHtmlOutput(html)](#createHtmlOutput(String)) | [HtmlOutput](/apps-script/reference/html/html-output) | Creates a new [HtmlOutput](/apps-script/reference/html/html-output) object that can be returned from the script. |\n| [createHtmlOutputFromFile(filename)](#createHtmlOutputFromFile(String)) | [HtmlOutput](/apps-script/reference/html/html-output) | Creates a new [HtmlOutput](/apps-script/reference/html/html-output) object from a file in the code editor. |\n| [createTemplate(blob)](#createTemplate(BlobSource)) | [HtmlTemplate](/apps-script/reference/html/html-template) | Creates a new [HtmlTemplate](/apps-script/reference/html/html-template) object from a [BlobSource](../base/blob-source.html) resource. |\n| [createTemplate(html)](#createTemplate(String)) | [HtmlTemplate](/apps-script/reference/html/html-template) | Creates a new [HtmlTemplate](/apps-script/reference/html/html-template) object that can be returned from the script. |\n| [createTemplateFromFile(filename)](#createTemplateFromFile(String)) | [HtmlTemplate](/apps-script/reference/html/html-template) | Creates a new [HtmlTemplate](/apps-script/reference/html/html-template) object from a file in the code editor. |\n| [getUserAgent()](#getUserAgent()) | `String` | Gets the user-agent string for the current browser. |\n\nDetailed documentation\n----------------------\n\n### `create``Html``Output()`\n\nCreates a new [HtmlOutput](/apps-script/reference/html/html-output) object that can be returned from the script.\n\n```javascript\nconst output = HtmlService.createHtmlOutput();\n```\n\n#### Return\n\n\n[HtmlOutput](/apps-script/reference/html/html-output) --- the new HtmlOutput object\n\n*** ** * ** ***\n\n### `create``Html``Output(blob)`\n\nCreates a new [HtmlOutput](/apps-script/reference/html/html-output) object from a [BlobSource](../base/blob-source.html) resource.\n\n```javascript\nfunction createFromBlob(blob) {\n const output = HtmlService.createHtmlOutput(blob);\n return output;\n}\n```\n\n#### Parameters\n\n| Name | Type | Description |\n|--------|----------------------------------------|-------------------------------|\n| `blob` | [BlobSource](../base/blob-source.html) | the object to get HTML out of |\n\n#### Return\n\n\n[HtmlOutput](/apps-script/reference/html/html-output) --- the new `Html``Output` object\n\n#### Throws\n\n\n[`Error`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Error) --- if the blob doesn't contain HTML or the HTML is malformed\n\n*** ** * ** ***\n\n### `create``Html``Output(html)`\n\nCreates a new [HtmlOutput](/apps-script/reference/html/html-output) object that can be returned from the script.\n\n```javascript\nconst output = HtmlService.createHtmlOutput('\u003cb\u003eHello world!\u003c/b\u003e');\n```\n\n#### Parameters\n\n| Name | Type | Description |\n|--------|----------|----------------------|\n| `html` | `String` | the content to serve |\n\n#### Return\n\n\n[HtmlOutput](/apps-script/reference/html/html-output) --- the new HtmlOutput object\n\n#### Throws\n\n\n[`Error`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Error) --- if the html is malformed\n\n*** ** * ** ***\n\n### `create``Html``Output``From``File(filename)`\n\nCreates a new [HtmlOutput](/apps-script/reference/html/html-output) object from a file in the code editor.\n\n```javascript\nconst output = HtmlService.createHtmlOutputFromFile('myPage');\n```\n\n#### Parameters\n\n| Name | Type | Description |\n|------------|----------|-----------------------------|\n| `filename` | `String` | the name of the file to use |\n\n#### Return\n\n\n[HtmlOutput](/apps-script/reference/html/html-output) --- the new `Html``Output` object\n\n#### Throws\n\n\n[`Error`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Error) --- if the file wasn't found or the HTML in it is malformed\n\n*** ** * ** ***\n\n### `create``Template(blob)`\n\nCreates a new [HtmlTemplate](/apps-script/reference/html/html-template) object from a [BlobSource](../base/blob-source.html) resource.\n\n```javascript\nfunction createFromBlob(blob) {\n const template = HtmlService.createTemplate(blob);\n const output = template.evaluate();\n return output;\n}\n```\n\n#### Parameters\n\n| Name | Type | Description |\n|--------|----------------------------------------|--------------------------------|\n| `blob` | [BlobSource](../base/blob-source.html) | The object to get HTML out of. |\n\n#### Return\n\n\n[HtmlTemplate](/apps-script/reference/html/html-template) --- the new `Html``Template` object\n\n#### Throws\n\n\n[`Error`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Error) --- if the blob doesn't contain HTML\n\n*** ** * ** ***\n\n### `create``Template(html)`\n\nCreates a new [HtmlTemplate](/apps-script/reference/html/html-template) object that can be returned from the script.\n\n```javascript\nconst template = HtmlService.createTemplate(\n '\u003cb\u003eThe time is <?= new Date() ?>\u003c/b\u003e',\n);\n```\n\n#### Parameters\n\n| Name | Type | Description |\n|--------|----------|-----------------------------|\n| `html` | `String` | the content of the template |\n\n#### Return\n\n\n[HtmlTemplate](/apps-script/reference/html/html-template) --- the new `Html``Template` object\n\n*** ** * ** ***\n\n### `create``Template``From``File(filename)`\n\nCreates a new [HtmlTemplate](/apps-script/reference/html/html-template) object from a file in the code editor.\n\n```javascript\nconst template = HtmlService.createTemplateFromFile('myTemplate');\n```\n\n#### Parameters\n\n| Name | Type | Description |\n|------------|----------|-----------------------------|\n| `filename` | `String` | the name of the file to use |\n\n#### Return\n\n\n[HtmlTemplate](/apps-script/reference/html/html-template) --- the new `Html``Template` object\n\n#### Throws\n\n\n[`Error`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Error) --- if the file wasn't found\n\n*** ** * ** ***\n\n### `get``User``Agent()`\n\nGets the user-agent string for the current browser. Returns `null` for most script\nexecutions if not used in a web app's `do``Get()` or `do``Post()` function.\n\n#### Return\n\n\n`String` --- the user-agent string"]]
