refactor(utils): moves times; isPromise

dzucconi · Aug 29, 2019 · 1f80e9e · 1f80e9e
1 parent e1d7c8e
commit 1f80e9e
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Showing 2 changed files with 8 additions and 4 deletions.
diff --git a/src/lib/times.ts b/src/lib/times.ts
diff --git a/src/lib/util.ts b/src/lib/util.ts
@@ -1,3 +1,11 @@
 export function isDefined<T>(value: T | undefined | null): value is T {
   return <T>value !== undefined && <T>value !== null;
 }
+
+export const isPromise = (val: void | Promise<any>): val is Promise<any> =>
+  val && (<Promise<any>>val).then !== undefined;
+
+export const times = <T>(n: number, fn: (num: number) => T): T[] =>
+  Array(n)
+    .fill(undefined)
+    .map((_, i) => fn(i));