The implicit page call at the end of the snippet (present in the previous JavaScript SDK versions) is removed in the latest SDK v3. You need to make a page call explicitly, if required, as shown below:
rudderanalytics.page();
Synchronous loading
To integrate the SDK with your website and load it synchronously:
Click the Minified or Unminified tab followed by Copy snippet.
Set asyncScript (highlighted below) to false.
varasyncScript=false;
Paste the modified script in your website’s <head> section.
Note that:
Depending on the browser, the SDK loads either the legacy or modern JavaScript SDK bundle. The legacy bundle is built for ES5 while the modern bundle (with Module Federation) is built for ES6.
You can also pass your loadOptions as a third argument in the rudderanalytics.load method. See Load JavaScript SDK for more information.
The implicit page call at the end of the snippet (present in the previous JavaScript SDK versions) is removed in the latest SDK v3. You need to make a page call explicitly, if required, as shown below:
rudderanalytics.page();
Installation workflow
The installation code snippets listed above perform the following actions:
Based on browser capabilities, load either the legacy or modern bundle.
Load the necessary polyfills for the SDK to load.
Create an array to store the events until the SDK is ready.
Store the method invocations in the below table to replay them when the SDK is ready.
While using the above snippets to integrate the JavaScript SDK with your website is recommended, you can alternatively use the NPM module for packaging RudderStack directly into your project.
To install the JavaScript SDK via NPM, run the following command:
npm install @rudderstack/analytics-js --save
Use this NPM module only for browser installation.
Since the NPM module exports the related APIs on an already-defined object combined with the Node.js module caching, run the following code snippet once and use the exported object throughout your project:
SDK imports for bundling tools that process dynamic imports
If you are using a tool to bundle your application and it is attempting to process the dynamic runtime imports of the dependencies, update your SDK imports from @rudderstack/analytics-js to @rudderstack/analytics-js/bundled to avoid any issues with dynamic imports failing to find plugin modules.
Most common toolchains like the ones based on webpack, rollup, and vite should not face any issues. If your particular setup/toolchain is affected, contact RudderStack Support.
Integration with Chromecast
RudderStack supports integrating the JavaScript SDK with Google Chromecast. You can build the web sender app by following these instructions and adding the JavaScript SDK.
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