1 files changed, 11 insertions, 1 deletions
diff --git a/src/Utils.ts b/src/Utils.ts
index a5d9bd0ca..8bd7f2f5c 100644
--- a/src/Utils.ts
+++ b/src/Utils.ts
@@ -18,7 +18,7 @@ export class Utils {
             return { scale: 1, translateX: 1, translateY: 1 }
         }
         const rect = ele.getBoundingClientRect();
-        const scale = ele.offsetWidth == 0 && rect.width == 0 ? 1 : rect.width / ele.offsetWidth;
+        const scale = ele.offsetWidth === 0 && rect.width === 0 ? 1 : rect.width / ele.offsetWidth;
         const translateX = rect.left;
         const translateY = rect.top;
 
@@ -86,4 +86,14 @@ export class Utils {
     }
 }
 
+export function returnTrue() {
+    return true;
+}
+
+export function returnFalse() {
+    return false;
+}
+
+export function emptyFunction() { }
+
 export type Without<T, K extends keyof T> = Pick<T, Exclude<keyof T, K>>;
 \ No newline at end of file