added type definitions

Author: cshaa

package.json

@@ -5,6 +5,7 @@
   "main": "src/main.cjs.js",
   "module": "src/main.es.js",
   "svelte": "src/Portal.svelte",
+  "types": "src/Portal.svelte.d.ts",
   "scripts": {
     "test": "jest test",
     "test:watch": "npm run test -- --watch",

src/Portal.svelte.d.ts

@@ -0,0 +1,31 @@
+import { SvelteComponentTyped } from "svelte";
+/**
+ * Usage: <div use:portal={'css selector'}> or <div use:portal={document.body}>
+ *
+ * @param {HTMLElement} el
+ * @param {HTMLElement|string} target DOM Element or CSS Selector
+ */
+export declare function portal(el: HTMLElement, target?: HTMLElement | string): {
+    update: (newTarget: HTMLElement | string) => Promise<void>;
+    destroy: () => void;
+};
+declare const __propDef: {
+    props: {
+        /**
+             * DOM Element or CSS Selector
+             * @type { HTMLElement|string}
+             */ target?: string | HTMLElement | undefined;
+    };
+    events: {
+        [evt: string]: CustomEvent<any>;
+    };
+    slots: {
+        default: {};
+    };
+};
+export declare type PortalProps = typeof __propDef.props;
+export declare type PortalEvents = typeof __propDef.events;
+export declare type PortalSlots = typeof __propDef.slots;
+export default class Portal extends SvelteComponentTyped<PortalProps, PortalEvents, PortalSlots> {
+}
+export {};