chore(typescript): add dtslint as CI

- Specify return type for `replace`

Author: nikolay-borzov

.travis.yml

@@ -5,6 +5,7 @@ install:
 - npm install
 script:
 - npm run lint
+- npm run dtslint
 - npm run cover
 - npm run build
 - npm run benchmark

types/index.d.ts

@@ -9,8 +9,8 @@ export default HTMLReactParser;
 type ReactElement = React.DetailedReactHTMLElement<{}, HTMLElement>;
 
 export interface HTMLReactParserOptions {
-  // TODO: Specify return type. React.ReactElement | undefined | false is not enough
-  replace(domNode: DomNode): any;
+  // TODO: Replace `object` by type for objects like `{ type: 'h1', props: { children: 'Heading' } }`
+  replace(domNode: DomNode): React.ReactElement | object | undefined | false;
 }
 
 /**

types/test.tsx

@@ -1,4 +1,4 @@
-import parse from 'html-dom-parser';
+import parse, { HTMLReactParserOptions } from 'html-dom-parser';
 import * as React from 'react';
 
 // $ExpectType string | DetailedReactHTMLElement<{}, HTMLElement> | DetailedReactHTMLElement<{}, HTMLElement>[]
@@ -16,13 +16,16 @@ parse('<p id="replace">text</p>', {
 });
 
 // Return ReactElement
-parse('<p><br id="remove"></p>', {
-  replace: ({ attribs }) =>
-    attribs && attribs.id === 'remove' && <React.Fragment />
-});
+const options: HTMLReactParserOptions = {
+  replace({ attribs }) {
+    return attribs && attribs.id === 'remove' && <React.Fragment />;
+  }
+} 
+
+parse('<p><br id="remove"></p>', options);
 
 // Return domhandler node
-parse('<a href="#">Heading</a>', {
+parse('<a id="header" href="#">Heading</a>', {
   replace: node => {
     if (node.attribs && node.attribs.id === 'header') {
       return {