The code provided does not generate a clickable "link", but rather creates a label that activates the selection of its associated radio button when clicked. The use of <label> enhances accessibility by facilitating clicking on items, especially on small screens, and is also beneficial for screen readers.
The inclusion of onclick in the code triggers a separate JavaScript function named changeButton, passing the string '2' to it. However, without defining the function itself, its exact purpose remains unclear, distinct from the interaction involving the label and the radio button.
// Since the label's HTML includes an onclick event, this function will execute
// when the label is clicked with the value '2' being passed to it.
function changeButton(input){
console.log("You triggered the changeButton function with the value: " + input);
}
<input type="radio" id="button-2" name="button-group-1">
<label onclick="changeButton('2');" for="button-2">Clicking here or on the radio button selects the button, while only clicking this text triggers the onclick event linked to the label.</label>
To create an actual hyperlink, you can simply utilize the HTML <a> element meant for hyperlinks:
<a href="https://www.google.com/search?q=stackexchange">Search for Stack Exchange</a>