Adjusted vue-scrollto definition for vue-scrollto version 2.15 (#37666)

* Adjusted vue-scrollto definition for vue-scrollto version 2.15

* Removed an empty line to start broken build

* Added an empty line to start broken build

* Fixed linter issues

* Aligned VueScrollTo definition with other vue plugins definitions

types/vue-scrollto/index.d.ts

@@ -1,10 +1,11 @@
-// Type definitions for vue-scrollto 2.14
+// Type definitions for vue-scrollto 2.15
 // Project: https://github.com/rigor789/vue-scrollto#readme
 // Definitions by: Kovács Vince <https://github.com/vincekovacs>
+//                 ChristianStornowski <https://github.com/ChristianStornowski>
 // Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
 // TypeScript Version: 2.4
 
-import { PluginFunction } from "vue";
+import { PluginFunction, PluginObject } from "vue";
 
 declare namespace VueScrollTo {
     interface Options {
@@ -16,7 +17,7 @@ declare namespace VueScrollTo {
         // The duration (in milliseconds) of the scrolling animation. Default: 500
         duration?: number;
         // The easing to be used when animating. Default: ease
-        easing?: string;
+        easing?: string | [number, number, number, number];
         // The offset that should be applied when scrolling. Default: 0
         offset?: number;
         // Indicates if scrolling should be performed, even if the scroll target is already in view. Default: true
@@ -45,10 +46,9 @@ declare namespace VueScrollTo {
     }
 }
 
-declare class VueScrollTo {
-    static install: PluginFunction<never>;
-
+interface VueScrollToPlugin extends PluginObject<VueScrollTo.Options> {
     scrollTo: VueScrollTo.VueStatic;
+    setDefaults: VueScrollTo.VueStatic;
 }
 
 declare module 'vue/types/vue' {
@@ -57,4 +57,5 @@ declare module 'vue/types/vue' {
     }
 }
 
+declare const VueScrollTo: VueScrollToPlugin;
 export = VueScrollTo;

types/vue-scrollto/vue-scrollto-tests.ts

@@ -2,10 +2,14 @@ import Vue from "vue";
 import * as VueScrollTo from "vue-scrollto";
 
 Vue.use(VueScrollTo);
+Vue.use(VueScrollTo, {offset: -100});
+
+VueScrollTo.setDefaults({offset: -100});
 
 class Test extends Vue {
     mounted() {
         this.$scrollTo(this.$el, {offset: -100});
         this.$scrollTo("#id");
+        VueScrollTo.scrollTo("#id", {offset: -100});
     }
 }