feat: drop support for Node 10

Author: tdreyno

.prettierignore

@@ -0,0 +1,5 @@
+package-lock.json
+yarn.lock
+build
+pkg
+coverage

docs/task-instance.md

@@ -76,9 +76,8 @@ Expand the error types of a task. Purely a TypeScript type system modification.
 {% tab title="Usage" %}
 
 ```typescript
-const task: Task<number | AnotherErrorPossibility, number> = Task.fail(
-  5,
-).errorUnion<AnotherErrorPossibility>()
+const task: Task<number | AnotherErrorPossibility, number> =
+  Task.fail(5).errorUnion<AnotherErrorPossibility>()
 ```
 
 {% endtab %}

package.json

@@ -74,12 +74,12 @@
     "eslint-plugin-prettier": "^3.4.0",
     "gzip-size-cli": "^5.0.0",
     "husky": "^6.0.0",
-    "jest": "^26.6.3",
+    "jest": "^27.0.0",
     "lint-staged": "^11.0.0",
     "prettier": "^2.3.0",
     "semantic-release": "^17.4.3",
     "terser": "^5.7.0",
-    "ts-jest": "^26.5.5",
+    "ts-jest": "^27.0.0",
     "ts-toolbelt": "^9.6.0",
     "typescript": "^4.3.2"
   },

src/Subscription/Subscription.ts

@@ -11,7 +11,8 @@ export class Subscription<T> {
     EventSubscriber<T>
   >()
   private status_: Status = "inactive"
-  private statusSubscribers_: Set<StatusSubscriber> = new Set<StatusSubscriber>()
+  private statusSubscribers_: Set<StatusSubscriber> =
+    new Set<StatusSubscriber>()
 
   // eslint-disable-next-line @typescript-eslint/no-explicit-any
   public emit(value: T): Task<any, any[]> {

src/Task/Task.ts

@@ -232,9 +232,10 @@ export const fromLazyPromise = <S>(
  * lazily returns a Task instead.
  * @param fn A function which returns a promise
  */
-export const wrapPromiseCreator = <S, Args extends unknown[]>(
-  fn: (...args: Args) => Promise<S>,
-) => (...args: Args): Task<unknown, S> => fromLazyPromise(() => fn(...args))
+export const wrapPromiseCreator =
+  <S, Args extends unknown[]>(fn: (...args: Args) => Promise<S>) =>
+  (...args: Args): Task<unknown, S> =>
+    fromLazyPromise(() => fn(...args))
 
 /**
  * Given a task, create a Promise which resolves when the task does.
@@ -955,9 +956,9 @@ export class Task<E, S> implements PromiseLike<S> {
   public ap<
     E2,
     S2,
-    S3 = S extends (arg: S2) => unknown ? ReturnType<S> : never
+    S3 = S extends (arg: S2) => unknown ? ReturnType<S> : never,
   >(task: Task<E | E2, S2>): Task<E | E2, S3> {
-    return ap((this as unknown) as Task<E, (result: S2) => S3>, task)
+    return ap(this as unknown as Task<E, (result: S2) => S3>, task)
   }
 
   public wait(ms: number): Task<E, S> {

src/__tests__/piuggi2.spec.ts

@@ -55,15 +55,14 @@ const contentToQuery: ContentTypes[] = [
 const unpublishAndDelete = (entry: typeof ENTRY) =>
   entry.isPublished() ? entry.unpublish() : entry.delete()
 
-const queryContentType = (environment: typeof ENV) => (
-  contentType: ContentTypes,
-) =>
-  environment[contentType]({
-    order: "sys.createdAt",
-    limit: 1000,
-  })
-    .map(response => response.items.map(unpublishAndDelete))
-    .chain(Task.sequence)
+const queryContentType =
+  (environment: typeof ENV) => (contentType: ContentTypes) =>
+    environment[contentType]({
+      order: "sys.createdAt",
+      limit: 1000,
+    })
+      .map(response => response.items.map(unpublishAndDelete))
+      .chain(Task.sequence)
 
 describe("piugi script 2", () => {
   test("the test", () =>

src/index.ts

@@ -10,6 +10,7 @@ export { RemoteData, Task, ExternalTask, LoopContinue, LoopBreak, Subscription }
  * returns a promise instead.
  * @param fn A function which returns a promise
  */
-export const wrapTaskCreator = <S, Args extends unknown[]>(
-  fn: (...args: Args) => Task<unknown, S>,
-) => (...args: Args): Promise<S> => fn(...args).toPromise()
+export const wrapTaskCreator =
+  <S, Args extends unknown[]>(fn: (...args: Args) => Task<unknown, S>) =>
+  (...args: Args): Promise<S> =>
+    fn(...args).toPromise()

src/util.ts

@@ -3,7 +3,8 @@ export const range = (end: number, start = 0): number[] =>
     .fill(undefined)
     .map((_, i) => start + i)
 
-export const to = <A, T>(fn: (items: A[]) => T) =>
+export const to =
+  <A, T>(fn: (items: A[]) => T) =>
   // eslint-disable-next-line @typescript-eslint/no-explicit-any, @typescript-eslint/explicit-module-boundary-types
   (sum: any, _item: A, index: number, all: A[]): T => {
     const isLast = index === all.length - 1
@@ -15,16 +16,21 @@ export const to = <A, T>(fn: (items: A[]) => T) =>
     return fn(all)
   }
 
-export const constant = <T>(value: T): (() => T) => () => value
+export const constant =
+  <T>(value: T): (() => T) =>
+  () =>
+    value
 
 export const identity = <T>(x: T): T => x
 
-export const toIndexedObject = <T, V, R extends { [key: string]: V }>(
-  fn: (item: T, index: number) => [string, V],
-) => (sum: R, item: T, index: number): R => {
-  const [key, value] = fn(item, index)
-  return ((sum as { [key: string]: V })[key] = value), sum
-}
+export const toIndexedObject =
+  <T, V, R extends { [key: string]: V }>(
+    fn: (item: T, index: number) => [string, V],
+  ) =>
+  (sum: R, item: T, index: number): R => {
+    const [key, value] = fn(item, index)
+    return ((sum as { [key: string]: V })[key] = value), sum
+  }
 
 export const mapToIndexedObject = <T, V, R extends { [key: string]: V }>(
   fn: (item: T, index: number) => [string, V],