isTypingFieldString(default: "isTyping")
Specifies the field name in the data source that indicates whether a message is currently being typed.
Example
<div id="chat"></div>
<script>
let messagesData = [
    { 
        id: 1, 
        text: "This message was removed", 
        authorId: "user1", 
        authorName: "John",
        typing: true,
        timestamp: new Date() 
    }
];
$("#chat").kendoChat({
    isTypingField: "typing",
    dataSource: messagesData
});
</script>
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