added easingStyle 'none' to disable scroll-animation

README.md

@@ -178,11 +178,12 @@ The following settings are editable to overwrite the default.
   //
   // Sets the easing type for the scroll animation that is triggered by the
   // click event on a nav item, by default it's 'easeOutQuad'.
+  // To disable scrolling animation, choose 'none'.
   //
   // available options are 'linear' 'easeInQuad', 'easeOutQuad',
   // 'easeInOutQuad', 'easeInCubic', 'easeOutCubic', 'easeInOutCubic',
   // 'easeInQuart', 'easeOutQuart', 'easeInOutQuart', 'easeInQuint',
-  // 'easeOutQuint', easeInOutQuint
+  // 'easeOutQuint', easeInOutQuint, 'none'
 
   updateHistory: true
   // boolean

src/scrollTo.js

@@ -35,6 +35,10 @@ export default function scrollTo(targetPosition, easingStyle) {
       }
     }
 
-    animateScroll();
+    if (easingStyle == 'none') {
+      window.scroll(0, targetPosition);
+    } else {
+      animateScroll();
+    }
   });
 }

src/scrollnav.js

@@ -62,9 +62,7 @@ function init(elem, options) {
     if (this.settings.debug) {
       // eslint-disable-next-line no-console
       console.error(`
-        scrollnav build failed, options.insertLocation "${
-          this.settings.insertLocation
-        }" is not a valid option
+        scrollnav build failed, options.insertLocation "${this.settings.insertLocation}" is not a valid option
       `);
     }
     return;