Merge pull request #165 from ReactiveX/fix-typeguard-predicate-typings

fix(typings): Fix optional predicate typings for user-defined typeguard predicates
ReactiveX · Nov 28, 2017 · a8a7fc9 · a8a7fc9
2 parents 868d16f + fedd563
commit a8a7fc9
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Showing 12 changed files with 12 additions and 12 deletions.
diff --git a/src/add/asynciterable-operators/first.ts b/src/add/asynciterable-operators/first.ts
@@ -7,7 +7,7 @@ import { first } from '../../asynciterable/first';
 
 export function firstProto<T, S extends T>(
   this: AsyncIterableX<T>,
-  predicate?: (value: T, index: number) => value is S
+  predicate: (value: T, index: number) => value is S
 ): Promise<S | undefined>;
 export function firstProto<T>(
   this: AsyncIterableX<T>,

diff --git a/src/add/asynciterable-operators/last.ts b/src/add/asynciterable-operators/last.ts
@@ -7,7 +7,7 @@ import { last } from '../../asynciterable/last';
 
 export function lastProto<T, S extends T>(
   this: AsyncIterableX<T>,
-  predicate?: (value: T, index: number) => value is S
+  predicate: (value: T, index: number) => value is S
 ): Promise<S | undefined>;
 export function lastProto<T>(
   this: AsyncIterableX<T>,

diff --git a/src/add/asynciterable-operators/single.ts b/src/add/asynciterable-operators/single.ts
@@ -7,7 +7,7 @@ import { single } from '../../asynciterable/single';
 
 export function singleProto<T, S extends T>(
   this: AsyncIterableX<T>,
-  predicate?: (value: T, index: number) => value is S
+  predicate: (value: T, index: number) => value is S
 ): Promise<S | undefined>;
 export function singleProto<T>(
   this: AsyncIterableX<T>,

diff --git a/src/add/iterable-operators/first.ts b/src/add/iterable-operators/first.ts
@@ -7,7 +7,7 @@ import { first } from '../../iterable/first';
 
 export function firstProto<T, S extends T>(
   this: IterableX<T>,
-  predicate?: (value: T, index: number) => value is S
+  predicate: (value: T, index: number) => value is S
 ): S | undefined;
 export function firstProto<T>(
   this: IterableX<T>,

diff --git a/src/add/iterable-operators/last.ts b/src/add/iterable-operators/last.ts
@@ -6,7 +6,7 @@ import { last } from '../../iterable/last';
  */
 export function lastProto<T, S extends T>(
   this: IterableX<T>,
-  predicate?: (value: T, index: number) => value is S
+  predicate: (value: T, index: number) => value is S
 ): S | undefined;
 export function lastProto<T>(
   this: IterableX<T>,

diff --git a/src/add/iterable-operators/single.ts b/src/add/iterable-operators/single.ts
@@ -6,7 +6,7 @@ import { single } from '../../iterable/single';
  */
 export function singleProto<T, S extends T>(
   this: IterableX<T>,
-  predicate?: (value: T, index: number) => value is S
+  predicate: (value: T, index: number) => value is S
 ): S | undefined;
 export function singleProto<T>(
   this: IterableX<T>,

diff --git a/src/asynciterable/first.ts b/src/asynciterable/first.ts
@@ -1,6 +1,6 @@
 export async function first<T, S extends T>(
   source: AsyncIterable<T>,
-  predicate?: (value: T, index: number) => value is S
+  predicate: (value: T, index: number) => value is S
 ): Promise<S | undefined>;
 export async function first<T>(
   source: AsyncIterable<T>,

diff --git a/src/asynciterable/last.ts b/src/asynciterable/last.ts
@@ -1,6 +1,6 @@
 export async function last<T, S extends T>(
   source: AsyncIterable<T>,
-  predicate?: (value: T, index: number) => value is S
+  predicate: (value: T, index: number) => value is S
 ): Promise<S | undefined>;
 export async function last<T>(
   source: AsyncIterable<T>,

diff --git a/src/asynciterable/single.ts b/src/asynciterable/single.ts
@@ -1,6 +1,6 @@
 export async function single<T, S extends T>(
   source: AsyncIterable<T>,
-  predicate?: (value: T, index: number) => value is S
+  predicate: (value: T, index: number) => value is S
 ): Promise<S | undefined>;
 export async function single<T>(
   source: AsyncIterable<T>,

diff --git a/src/iterable/first.ts b/src/iterable/first.ts
@@ -9,7 +9,7 @@
  */
 export function first<T, S extends T>(
   source: Iterable<T>,
-  predicate?: (value: T, index: number) => value is S
+  predicate: (value: T, index: number) => value is S
 ): S | undefined;
 export function first<T>(
   source: Iterable<T>,

diff --git a/src/iterable/last.ts b/src/iterable/last.ts
@@ -1,6 +1,6 @@
 export function last<T, S extends T>(
   source: Iterable<T>,
-  predicate?: (value: T, index: number) => value is S
+  predicate: (value: T, index: number) => value is S
 ): S | undefined;
 export function last<T>(
   source: Iterable<T>,

diff --git a/src/iterable/single.ts b/src/iterable/single.ts
@@ -1,6 +1,6 @@
 export function single<T, S extends T>(
   source: Iterable<T>,
-  predicate?: (value: T, index: number) => value is S
+  predicate: (value: T, index: number) => value is S
 ): S | undefined;
 export function single<T>(
   source: Iterable<T>,