Rename the variable to align with what it does

Author: danieljbruce

src/entity.ts

@@ -843,7 +843,7 @@ export namespace entity {
  const splitPath = path.split(delimiter);
  const firstPathPart = splitPath.shift()!;
  const remainderPath = splitPath.join(delimiter).replace(/^(\.|\[\])/, '');
- const isFirstPathPartUndefined =
+ const isFirstPathPartDefined =
  entity.properties![firstPathPart] !== undefined;
 
  if (
@@ -857,7 +857,7 @@ export namespace entity {
  if (
  firstPathPartIsArray &&
  // check also if the property in question is actually an array value.
- isFirstPathPartUndefined &&
+ isFirstPathPartDefined &&
  entity.properties![firstPathPart].arrayValue &&
  // check if wildcard is not applied
  !hasWildCard
@@ -886,7 +886,7 @@ export namespace entity {
  firstPathPartIsArray &&
  hasWildCard &&
  remainderPath === '*' &&
- isFirstPathPartUndefined
+ isFirstPathPartDefined
  ) {
  const array = entity.properties![firstPathPart].arrayValue;
  // eslint-disable-next-line @typescript-eslint/no-explicit-any
@@ -909,7 +909,7 @@ export namespace entity {
  if (
  hasWildCard &&
  remainderPath === '*' &&
- isFirstPathPartUndefined
+ isFirstPathPartDefined
  ) {
  const parentEntity = entity.properties![firstPathPart].entityValue;
 
@@ -923,7 +923,7 @@ export namespace entity {
  } else {
  excludePathFromEntity(entity, firstPathPart);
  }
- } else if (isFirstPathPartUndefined) {
+ } else if (isFirstPathPartDefined) {
  const parentEntity = entity.properties![firstPathPart].entityValue;
  excludePathFromEntity(parentEntity, remainderPath);
  }