getProperties()
returns an object with the available configuration attributes of the control
getProperties(): object;
Returns:
An object with the available attributes of the control and their values.
Example
const form = new dhx.Form("form_container", {
    rows: [
        {
            type: "textarea",
            name:"textarea",
            label: "textarea",
            labelWidth: "70px",
            value: "Some nice text",
            width:400
        }
    ]
});
form.getItem("textarea").getProperties();
The returned object of the Textarea control looks like:
{
    errorMessage: "",
    height: "content",
    helpMessage: "",
    hiddenLabel: false,
    label: "textarea",
    labelPosition: "top",
    labelWidth: "70px",
    maxlength: undefined,
    minlength: undefined,
    padding: 0,
    placeholder: "",
    preMessage: "",
    readOnly: false,
    required: false,
    successMessage: "",
    validation: undefined,
    width: 400
}
You will find the description of these properties here.
Change log:
added in v7.0