### Initializing Google Analytics Data Layer - JavaScript

Source: https://github.com/daanheskes/osrs-idle-clicker/blob/master/public/index.html

This snippet initializes the `dataLayer` array, which is fundamental for Google Analytics (gtag.js) to collect and send data. It uses a common pattern to ensure `dataLayer` is an array, creating it if it doesn't already exist, preventing errors if the script runs multiple times.

```JavaScript
window.dataLayer = window.dataLayer || [];
```

--------------------------------

### Loading Google Analytics Script - JavaScript

Source: https://github.com/daanheskes/osrs-idle-clicker/blob/master/public/index.html

This `gtag` call is crucial for loading the Google Analytics JavaScript library itself. The 'js' command indicates that the main analytics script should be loaded, and `new Date()` is typically used to set a timestamp, often for cache busting or initial hit timing.

```JavaScript
gtag('js', new Date());
```

--------------------------------

### Defining gtag Function for Google Analytics - JavaScript

Source: https://github.com/daanheskes/osrs-idle-clicker/blob/master/public/index.html

This function serves as the primary interface for interacting with Google Analytics (gtag.js). It pushes any arguments passed to `gtag` directly into the `dataLayer` array, which is then processed by the Google Analytics library to send hits and configurations.

```JavaScript
function gtag() { dataLayer.push(arguments); }
```

--------------------------------

### Configuring Google Analytics Tracking ID - JavaScript

Source: https://github.com/daanheskes/osrs-idle-clicker/blob/master/public/index.html

This `gtag` call configures Google Analytics with the specific tracking ID ('UA-150818835-1'). This links all subsequent data collected on the page to the designated Google Analytics property, enabling data collection and reporting for that specific account.

```JavaScript
gtag('config', 'UA-150818835-1');
```

=== COMPLETE CONTENT === This response contains all available snippets from this library. No additional content exists. Do not make further requests.