authorImageUrlFieldString(default: "authorImageUrl")
Specifies the field name in the data source from which the URL for the author's avatar image will be read.
Example
<div id="chat"></div>
<script>
let messagesData = [
    { 
        id: 1, 
        text: "Hello!", 
        authorId: "user1", 
        authorName: "John",
        avatarUrl: "https://demos.telerik.com/kendo-ui/content/web/Customers/RICSU.jpg",
        timestamp: new Date() 
    }
];
$("#chat").kendoChat({
    authorImageUrlField: "avatarUrl",
    dataSource: messagesData
});
</script>
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