properly detect invalid image dimensions passed to the CLI

stuffmatic · Dec 23, 2018 · ca86836 · ca86836
1 parent 17b5cde
commit ca86836
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/cli/cli.ts b/src/cli/cli.ts
@@ -69,7 +69,7 @@ export class CLI {
     const imageWidth = parseFloat(imageWidthString)
     const imageHeight = parseFloat(imageHeightString)
 
-    if (imageWidth == undefined || imageHeight == undefined) {
+    if (isNaN(imageWidth) || isNaN(imageHeight)) {
       console.log('Error: got invalid image dimensions')
       return
     }