How to use the schema-based-json-editor.getErrorMessageOfArray function in schema-based-json-editor

private validate() {
    this.errorMessage = common.getErrorMessageOfArray(this.value, this.props.schema, this.props.locale)
  }
  private addItem = () => {

private validate() {
    this.errorMessage = common.getErrorMessageOfArray(this.value, this.schema, this.locale)
  }
}

private validate() {
    this.errorMessage = common.getErrorMessageOfArray(this.value, this.schema, this.locale)
  }
}