Chore: reduce null check errors/warnigns (#25223)

* fix a few null errors * more * flip logic * merge master * more * fewer changes * processor Co-authored-by: Torkel Ödegaard <torkel@grafana.com>
2020-07-03 17:49:29 +02:00
parent 26852ca788
commit c0762b6ddc
8 changed files with 60 additions and 48 deletions
@@ -53,15 +53,15 @@ export class DataFrameView<T = any> extends FunctionalVector<T> {
   * Helper function to return the {@link DisplayProcessor} for a given field column.
   * @param colIndex - the field column index for the data frame.
   */
-  getFieldDisplayProcessor(colIndex: number): DisplayProcessor | null {
+  getFieldDisplayProcessor(colIndex: number): DisplayProcessor | undefined {
    if (!this.dataFrame || !this.dataFrame.fields) {
-      return null;
+      return undefined;
    }

    const field = this.dataFrame.fields[colIndex];

    if (!field || !field.display) {
-      return null;
+      return undefined;
    }

    return field.display;