more cleanup of pdfs

1 files changed, 2 insertions, 0 deletions

diff --git a/src/Utils.ts b/src/Utils.ts
index 502540eb0..bad875f0d 100644
--- a/src/Utils.ts
+++ b/src/Utils.ts
@@ -132,6 +132,8 @@ export function WithKeys(obj: any, keys: string[], addKeyFunc?: (dup: any) => vo
     return dup;
 }
 
+export function numberRange(num: number) { return Array.from(Array(num)).map((v, i) => i); }
+
 export function returnTrue() { return true; }
 
 export function returnFalse() { return false; }