prefixOptions.separatorBoolean(default: true)
If set to false, the prefix adornment will not have a separator.
Example - specify prefix adornment separator
<input id="textbox" />
<script>
    $("#textbox").kendoTextBox({
        prefixOptions: {
            template: () => `${kendo.ui.icon("search")}`,
            separator: false
        }
    })
</script>In this article