perf(screenshot): cache height & width values

microlinkhq · Oct 5, 2022 · f3b9a07 · f3b9a07
1 parent fb34a19
commit f3b9a07
Showing 1 changed file with 4 additions and 2 deletions.
diff --git a/packages/screenshot/src/is-white-screenshot.js b/packages/screenshot/src/is-white-screenshot.js
@@ -5,9 +5,11 @@ const jimp = require('jimp')
 module.exports = async buffer => {
   const image = await jimp.read(buffer)
   const firstPixel = image.getPixelColor(0, 0)
+  const height = image.getHeight()
+  const width = image.getWidth()
 
-  for (let i = 0; i < image.getHeight(); i++) {
-    for (let j = 0; j < image.getWidth(); j++) {
+  for (let i = 0; i < height; i++) {
+    for (let j = 0; j < width; j++) {
       if (firstPixel !== image.getPixelColor(j, i)) return false
     }
   }