diff --git a/package-lock.json b/package-lock.json
index 00764a7..3cf2fa8 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -18,13 +18,16 @@
         "@rollup/plugin-babel": "^6.0.3",
         "@rollup/plugin-node-resolve": "^15.0.1",
         "@rollup/plugin-terser": "^0.4.0",
-        "@typescript-eslint/eslint-plugin": "^5.53.0",
-        "@typescript-eslint/parser": "^5.53.0",
+        "@types/chai": "^4.3.4",
+        "@types/mocha": "^10.0.1",
+        "@typescript-eslint/eslint-plugin": "^5.55.0",
+        "@typescript-eslint/parser": "^5.55.0",
         "chai": "^4.3.7",
         "eslint": "^8.34.0",
-        "eslint-config-prettier": "^8.6.0",
+        "eslint-config-prettier": "^8.7.0",
         "eslint-plugin-prettier": "^4.2.1",
         "jsdom": "^21.1.0",
+        "jsdom-global": "^3.0.2",
         "mocha": "^10.2.0",
         "prettier": "^2.8.4",
         "rollup": "^3.15.0",
@@ -1823,6 +1826,30 @@
         "node": ">=6.9.0"
       }
     },
+    "node_modules/@eslint-community/eslint-utils": {
+      "version": "4.3.0",
+      "resolved": "https://registry.npmjs.org/@eslint-community/eslint-utils/-/eslint-utils-4.3.0.tgz",
+      "integrity": "sha512-v3oplH6FYCULtFuCeqyuTd9D2WKO937Dxdq+GmHOLL72TTRriLxz2VLlNfkZRsvj6PKnOPAtuT6dwrs/pA5DvA==",
+      "dev": true,
+      "dependencies": {
+        "eslint-visitor-keys": "^3.3.0"
+      },
+      "engines": {
+        "node": "^12.22.0 || ^14.17.0 || >=16.0.0"
+      },
+      "peerDependencies": {
+        "eslint": "^6.0.0 || ^7.0.0 || >=8.0.0"
+      }
+    },
+    "node_modules/@eslint-community/regexpp": {
+      "version": "4.4.0",
+      "resolved": "https://registry.npmjs.org/@eslint-community/regexpp/-/regexpp-4.4.0.tgz",
+      "integrity": "sha512-A9983Q0LnDGdLPjxyXQ00sbV+K+O+ko2Dr+CZigbHWtX9pNfxlaBkMR8X1CztI73zuEyEBXTVjx7CE+/VSwDiQ==",
+      "dev": true,
+      "engines": {
+        "node": "^12.0.0 || ^14.0.0 || >=16.0.0"
+      }
+    },
     "node_modules/@eslint/eslintrc": {
       "version": "1.4.1",
       "resolved": "https://registry.npmjs.org/@eslint/eslintrc/-/eslintrc-1.4.1.tgz",
@@ -2111,6 +2138,12 @@
         "node": ">= 10"
       }
     },
+    "node_modules/@types/chai": {
+      "version": "4.3.4",
+      "resolved": "https://registry.npmjs.org/@types/chai/-/chai-4.3.4.tgz",
+      "integrity": "sha512-KnRanxnpfpjUTqTCXslZSEdLfXExwgNxYPdiO2WGUj8+HDjFi8R3k5RVKPeSCzLjCcshCAtVO2QBbVuAV4kTnw==",
+      "dev": true
+    },
     "node_modules/@types/estree": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/@types/estree/-/estree-1.0.0.tgz",
@@ -2123,6 +2156,12 @@
       "integrity": "sha512-wOuvG1SN4Us4rez+tylwwwCV1psiNVOkJeM3AUWUNWg/jDQY2+HE/444y5gc+jBmRqASOm2Oeh5c1axHobwRKQ==",
       "dev": true
     },
+    "node_modules/@types/mocha": {
+      "version": "10.0.1",
+      "resolved": "https://registry.npmjs.org/@types/mocha/-/mocha-10.0.1.tgz",
+      "integrity": "sha512-/fvYntiO1GeICvqbQ3doGDIP97vWmvFt83GKguJ6prmQM2iXZfFcq6YE8KteFyRtX2/h5Hf91BYvPodJKFYv5Q==",
+      "dev": true
+    },
     "node_modules/@types/resolve": {
       "version": "1.20.2",
       "resolved": "https://registry.npmjs.org/@types/resolve/-/resolve-1.20.2.tgz",
@@ -2136,19 +2175,19 @@
       "dev": true
     },
     "node_modules/@typescript-eslint/eslint-plugin": {
-      "version": "5.54.1",
-      "resolved": "https://registry.npmjs.org/@typescript-eslint/eslint-plugin/-/eslint-plugin-5.54.1.tgz",
-      "integrity": "sha512-a2RQAkosH3d3ZIV08s3DcL/mcGc2M/UC528VkPULFxR9VnVPT8pBu0IyBAJJmVsCmhVfwQX1v6q+QGnmSe1bew==",
+      "version": "5.55.0",
+      "resolved": "https://registry.npmjs.org/@typescript-eslint/eslint-plugin/-/eslint-plugin-5.55.0.tgz",
+      "integrity": "sha512-IZGc50rtbjk+xp5YQoJvmMPmJEYoC53SiKPXyqWfv15XoD2Y5Kju6zN0DwlmaGJp1Iw33JsWJcQ7nw0lGCGjVg==",
       "dev": true,
       "dependencies": {
-        "@typescript-eslint/scope-manager": "5.54.1",
-        "@typescript-eslint/type-utils": "5.54.1",
-        "@typescript-eslint/utils": "5.54.1",
+        "@eslint-community/regexpp": "^4.4.0",
+        "@typescript-eslint/scope-manager": "5.55.0",
+        "@typescript-eslint/type-utils": "5.55.0",
+        "@typescript-eslint/utils": "5.55.0",
         "debug": "^4.3.4",
         "grapheme-splitter": "^1.0.4",
         "ignore": "^5.2.0",
         "natural-compare-lite": "^1.4.0",
-        "regexpp": "^3.2.0",
         "semver": "^7.3.7",
         "tsutils": "^3.21.0"
       },
@@ -2203,14 +2242,14 @@
       "dev": true
     },
     "node_modules/@typescript-eslint/parser": {
-      "version": "5.54.1",
-      "resolved": "https://registry.npmjs.org/@typescript-eslint/parser/-/parser-5.54.1.tgz",
-      "integrity": "sha512-8zaIXJp/nG9Ff9vQNh7TI+C3nA6q6iIsGJ4B4L6MhZ7mHnTMR4YP5vp2xydmFXIy8rpyIVbNAG44871LMt6ujg==",
+      "version": "5.55.0",
+      "resolved": "https://registry.npmjs.org/@typescript-eslint/parser/-/parser-5.55.0.tgz",
+      "integrity": "sha512-ppvmeF7hvdhUUZWSd2EEWfzcFkjJzgNQzVST22nzg958CR+sphy8A6K7LXQZd6V75m1VKjp+J4g/PCEfSCmzhw==",
       "dev": true,
       "dependencies": {
-        "@typescript-eslint/scope-manager": "5.54.1",
-        "@typescript-eslint/types": "5.54.1",
-        "@typescript-eslint/typescript-estree": "5.54.1",
+        "@typescript-eslint/scope-manager": "5.55.0",
+        "@typescript-eslint/types": "5.55.0",
+        "@typescript-eslint/typescript-estree": "5.55.0",
         "debug": "^4.3.4"
       },
       "engines": {
@@ -2230,13 +2269,13 @@
       }
     },
     "node_modules/@typescript-eslint/scope-manager": {
-      "version": "5.54.1",
-      "resolved": "https://registry.npmjs.org/@typescript-eslint/scope-manager/-/scope-manager-5.54.1.tgz",
-      "integrity": "sha512-zWKuGliXxvuxyM71UA/EcPxaviw39dB2504LqAmFDjmkpO8qNLHcmzlh6pbHs1h/7YQ9bnsO8CCcYCSA8sykUg==",
+      "version": "5.55.0",
+      "resolved": "https://registry.npmjs.org/@typescript-eslint/scope-manager/-/scope-manager-5.55.0.tgz",
+      "integrity": "sha512-OK+cIO1ZGhJYNCL//a3ROpsd83psf4dUJ4j7pdNVzd5DmIk+ffkuUIX2vcZQbEW/IR41DYsfJTB19tpCboxQuw==",
       "dev": true,
       "dependencies": {
-        "@typescript-eslint/types": "5.54.1",
-        "@typescript-eslint/visitor-keys": "5.54.1"
+        "@typescript-eslint/types": "5.55.0",
+        "@typescript-eslint/visitor-keys": "5.55.0"
       },
       "engines": {
         "node": "^12.22.0 || ^14.17.0 || >=16.0.0"
@@ -2247,13 +2286,13 @@
       }
     },
     "node_modules/@typescript-eslint/type-utils": {
-      "version": "5.54.1",
-      "resolved": "https://registry.npmjs.org/@typescript-eslint/type-utils/-/type-utils-5.54.1.tgz",
-      "integrity": "sha512-WREHsTz0GqVYLIbzIZYbmUUr95DKEKIXZNH57W3s+4bVnuF1TKe2jH8ZNH8rO1CeMY3U4j4UQeqPNkHMiGem3g==",
+      "version": "5.55.0",
+      "resolved": "https://registry.npmjs.org/@typescript-eslint/type-utils/-/type-utils-5.55.0.tgz",
+      "integrity": "sha512-ObqxBgHIXj8rBNm0yh8oORFrICcJuZPZTqtAFh0oZQyr5DnAHZWfyw54RwpEEH+fD8suZaI0YxvWu5tYE/WswA==",
       "dev": true,
       "dependencies": {
-        "@typescript-eslint/typescript-estree": "5.54.1",
-        "@typescript-eslint/utils": "5.54.1",
+        "@typescript-eslint/typescript-estree": "5.55.0",
+        "@typescript-eslint/utils": "5.55.0",
         "debug": "^4.3.4",
         "tsutils": "^3.21.0"
       },
@@ -2274,9 +2313,9 @@
       }
     },
     "node_modules/@typescript-eslint/types": {
-      "version": "5.54.1",
-      "resolved": "https://registry.npmjs.org/@typescript-eslint/types/-/types-5.54.1.tgz",
-      "integrity": "sha512-G9+1vVazrfAfbtmCapJX8jRo2E4MDXxgm/IMOF4oGh3kq7XuK3JRkOg6y2Qu1VsTRmWETyTkWt1wxy7X7/yLkw==",
+      "version": "5.55.0",
+      "resolved": "https://registry.npmjs.org/@typescript-eslint/types/-/types-5.55.0.tgz",
+      "integrity": "sha512-M4iRh4AG1ChrOL6Y+mETEKGeDnT7Sparn6fhZ5LtVJF1909D5O4uqK+C5NPbLmpfZ0XIIxCdwzKiijpZUOvOug==",
       "dev": true,
       "engines": {
         "node": "^12.22.0 || ^14.17.0 || >=16.0.0"
@@ -2287,13 +2326,13 @@
       }
     },
     "node_modules/@typescript-eslint/typescript-estree": {
-      "version": "5.54.1",
-      "resolved": "https://registry.npmjs.org/@typescript-eslint/typescript-estree/-/typescript-estree-5.54.1.tgz",
-      "integrity": "sha512-bjK5t+S6ffHnVwA0qRPTZrxKSaFYocwFIkZx5k7pvWfsB1I57pO/0M0Skatzzw1sCkjJ83AfGTL0oFIFiDX3bg==",
+      "version": "5.55.0",
+      "resolved": "https://registry.npmjs.org/@typescript-eslint/typescript-estree/-/typescript-estree-5.55.0.tgz",
+      "integrity": "sha512-I7X4A9ovA8gdpWMpr7b1BN9eEbvlEtWhQvpxp/yogt48fy9Lj3iE3ild/1H3jKBBIYj5YYJmS2+9ystVhC7eaQ==",
       "dev": true,
       "dependencies": {
-        "@typescript-eslint/types": "5.54.1",
-        "@typescript-eslint/visitor-keys": "5.54.1",
+        "@typescript-eslint/types": "5.55.0",
+        "@typescript-eslint/visitor-keys": "5.55.0",
         "debug": "^4.3.4",
         "globby": "^11.1.0",
         "is-glob": "^4.0.3",
@@ -2347,18 +2386,18 @@
       "dev": true
     },
     "node_modules/@typescript-eslint/utils": {
-      "version": "5.54.1",
-      "resolved": "https://registry.npmjs.org/@typescript-eslint/utils/-/utils-5.54.1.tgz",
-      "integrity": "sha512-IY5dyQM8XD1zfDe5X8jegX6r2EVU5o/WJnLu/znLPWCBF7KNGC+adacXnt5jEYS9JixDcoccI6CvE4RCjHMzCQ==",
+      "version": "5.55.0",
+      "resolved": "https://registry.npmjs.org/@typescript-eslint/utils/-/utils-5.55.0.tgz",
+      "integrity": "sha512-FkW+i2pQKcpDC3AY6DU54yl8Lfl14FVGYDgBTyGKB75cCwV3KpkpTMFi9d9j2WAJ4271LR2HeC5SEWF/CZmmfw==",
       "dev": true,
       "dependencies": {
+        "@eslint-community/eslint-utils": "^4.2.0",
         "@types/json-schema": "^7.0.9",
         "@types/semver": "^7.3.12",
-        "@typescript-eslint/scope-manager": "5.54.1",
-        "@typescript-eslint/types": "5.54.1",
-        "@typescript-eslint/typescript-estree": "5.54.1",
+        "@typescript-eslint/scope-manager": "5.55.0",
+        "@typescript-eslint/types": "5.55.0",
+        "@typescript-eslint/typescript-estree": "5.55.0",
         "eslint-scope": "^5.1.1",
-        "eslint-utils": "^3.0.0",
         "semver": "^7.3.7"
       },
       "engines": {
@@ -2428,12 +2467,12 @@
       "dev": true
     },
     "node_modules/@typescript-eslint/visitor-keys": {
-      "version": "5.54.1",
-      "resolved": "https://registry.npmjs.org/@typescript-eslint/visitor-keys/-/visitor-keys-5.54.1.tgz",
-      "integrity": "sha512-q8iSoHTgwCfgcRJ2l2x+xCbu8nBlRAlsQ33k24Adj8eoVBE0f8dUeI+bAa8F84Mv05UGbAx57g2zrRsYIooqQg==",
+      "version": "5.55.0",
+      "resolved": "https://registry.npmjs.org/@typescript-eslint/visitor-keys/-/visitor-keys-5.55.0.tgz",
+      "integrity": "sha512-q2dlHHwWgirKh1D3acnuApXG+VNXpEY5/AwRxDVuEQpxWaB0jCDe0jFMVMALJ3ebSfuOVE8/rMS+9ZOYGg1GWw==",
       "dev": true,
       "dependencies": {
-        "@typescript-eslint/types": "5.54.1",
+        "@typescript-eslint/types": "5.55.0",
         "eslint-visitor-keys": "^3.3.0"
       },
       "engines": {
@@ -3212,9 +3251,9 @@
       }
     },
     "node_modules/eslint-config-prettier": {
-      "version": "8.6.0",
-      "resolved": "https://registry.npmjs.org/eslint-config-prettier/-/eslint-config-prettier-8.6.0.tgz",
-      "integrity": "sha512-bAF0eLpLVqP5oEVUFKpMA+NnRFICwn9X8B5jrR9FcqnYBuPbqWEjTEspPWMj5ye6czoSLDweCzSo3Ko7gGrZaA==",
+      "version": "8.7.0",
+      "resolved": "https://registry.npmjs.org/eslint-config-prettier/-/eslint-config-prettier-8.7.0.tgz",
+      "integrity": "sha512-HHVXLSlVUhMSmyW4ZzEuvjpwqamgmlfkutD53cYXLikh4pt/modINRcCIApJ84czDxM4GZInwUrromsDdTImTA==",
       "dev": true,
       "bin": {
         "eslint-config-prettier": "bin/cli.js"
@@ -4260,6 +4299,15 @@
         }
       }
     },
+    "node_modules/jsdom-global": {
+      "version": "3.0.2",
+      "resolved": "https://registry.npmjs.org/jsdom-global/-/jsdom-global-3.0.2.tgz",
+      "integrity": "sha512-t1KMcBkz/pT5JrvcJbpUR2u/w1kO9jXctaaGJ0vZDzwFnIvGWw9IDSRciT83kIs8Bnw4qpOl8bQK08V01YgMPg==",
+      "dev": true,
+      "peerDependencies": {
+        "jsdom": ">=10.0.0"
+      }
+    },
     "node_modules/jsesc": {
       "version": "2.5.2",
       "resolved": "https://registry.npmjs.org/jsesc/-/jsesc-2.5.2.tgz",
diff --git a/src/index.ts b/src/index.ts
index 20b5dad..cc443fb 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -32,6 +32,15 @@ const getDocument = (() => {
 	};
 })();
 
+/**
+ * Given a markup string or DOM element, creates an object aligning with the
+ * shape of the matchers object, or the value returned by the matcher.
+ *
+ * @param source Source content
+ * @param matchers Matcher function or object of matchers
+ */
+export function parse(source: string | Element, matchers?: undefined): undefined;
+
 /**
  * Given a markup string or DOM element, creates an object aligning with the
  * shape of the matchers object, or the value returned by the matcher.
@@ -67,15 +76,6 @@ export function parse<F extends MatcherFn, O extends MatcherObj>(
 	matchers: O | F
 ): MatcherObjResult<F, O> | ReturnType<F>;
 
-/**
- * Given a markup string or DOM element, creates an object aligning with the
- * shape of the matchers object, or the value returned by the matcher.
- *
- * @param source Source content
- * @param matchers Matcher function or object of matchers
- */
-export function parse(source: string | Element, matchers?: undefined): undefined;
-
 /**
  * Given a markup string or DOM element, creates an object aligning with the
  * shape of the matchers object, or the value returned by the matcher.
@@ -124,7 +124,7 @@ export function parse<F extends MatcherFn, O extends MatcherObj>(
  * @param name Property name
  * @return Property value
  */
-export function prop<E extends Element, K extends keyof E>(name: string): MatcherFn<E[K]>;
+export function prop<N extends keyof Element>(name: string): MatcherFn<Element[N]>;
 
 /**
  * Generates a function which matches node of type selector, returning an
@@ -135,10 +135,10 @@ export function prop<E extends Element, K extends keyof E>(name: string): Matche
  * @param name Property name
  * @return Property value
  */
-export function prop<E extends Element, K extends keyof E>(
+export function prop<N extends keyof Element>(
 	selector: string | undefined,
-	name: string
-): MatcherFn<E[K]>;
+	name: N
+): MatcherFn<Element[N]>;
 
 /**
  * Generates a function which matches node of type selector, returning an
@@ -149,10 +149,10 @@ export function prop<E extends Element, K extends keyof E>(
  * @param name Property name
  * @return Property value
  */
-export function prop<E extends Element, K extends keyof E>(
+export function prop<N extends keyof Element>(
 	arg1: string | undefined,
 	arg2?: string
-): MatcherFn<E[K]> {
+): MatcherFn<Element[N]> {
 	let name: string;
 	let selector: string | undefined;
 	if (1 === arguments.length) {
@@ -162,15 +162,15 @@ export function prop<E extends Element, K extends keyof E>(
 		name = arg2 as string;
 		selector = arg1;
 	}
-	return function (node: E): E[K] | undefined {
+	return function (node: Element): Element[N] | undefined {
 		let match: Element | null = node;
 		if (selector) {
 			match = node.querySelector(selector);
 		}
 		if (match) {
-			return getPath(match, name) as E[K] | undefined;
+			return getPath(match, name) as Element[N] | undefined;
 		}
-	} as MatcherFn<E[K]>;
+	} as MatcherFn<Element[N]>;
 }
 
 /**
@@ -230,7 +230,7 @@ export function attr(arg1: string | undefined, arg2?: string): MatcherFn<string>
  * @return Inner HTML
  */
 export function html(selector?: string) {
-	return prop(selector, 'innerHTML');
+	return prop(selector, 'innerHTML') as MatcherFn<string>;
 }
 
 /**
@@ -242,7 +242,7 @@ export function html(selector?: string) {
  * @return Text content
  */
 export function text(selector?: string) {
-	return prop(selector, 'textContent');
+	return prop(selector, 'textContent') as MatcherFn<string>;
 }
 
 /**
@@ -254,11 +254,14 @@ export function text(selector?: string) {
  *
  * @param selector Selector to match
  * @param matchers Matcher function or object of matchers
- * @return         Matcher function which returns an array of matched value(s)
+ * @return Matcher function which returns an array of matched value(s)
  */
-export function query(selector: string, matchers: MatcherObj) {
-	return function (node: Element): any[] {
+export function query<F extends MatcherFn, O extends MatcherObj>(
+	selector: string,
+	matchers?: F | O
+) {
+	return function (node: Element) {
 		const matches = node.querySelectorAll(selector);
-		return [].map.call(matches, (match) => parse(match, matchers));
+		return [].map.call(matches, (match) => parse(match, matchers!)) as MatcherObjResult<F, O>[];
 	};
 }
diff --git a/test/get-path.js b/test/get-path.ts
similarity index 100%
rename from test/get-path.js
rename to test/get-path.ts
diff --git a/test/index.js b/test/index.ts
similarity index 89%
rename from test/index.js
rename to test/index.ts
index 17d585a..cefeb7d 100644
--- a/test/index.js
+++ b/test/index.ts
@@ -14,23 +14,12 @@ describe('hpq', () => {
 		'<blockquote><p>…</p><p>…</p><cite class="large"><em>—</em> Andrew</cite></blockquote>';
 
 	// Element
-	let element;
+	let element: HTMLElement;
 
 	before(() => {
-		const { JSDOM } = require('jsdom');
-		global.window = new JSDOM('').window;
-		global.document = window.document;
-		global.navigator = window.navigator;
-
 		element = document.createElement('div');
 		element.innerHTML = markup;
-		element = element.firstChild;
-	});
-
-	after(() => {
-		delete global.document;
-		delete global.window;
-		delete global.navigator;
+		element = element.firstChild as HTMLElement;
 	});
 
 	describe('parse()', () => {
@@ -52,7 +41,8 @@ describe('hpq', () => {
 			expect(result).to.equal('— Andrew');
 		});
 
-		it('should return undefiend if passed matchers other than object, function', () => {
+		it('should return undefined if passed matchers other than object, function', () => {
+			// @ts-ignore
 			const result = parse(element, 2);
 
 			expect(result).to.be.undefined;
@@ -71,6 +61,7 @@ describe('hpq', () => {
 
 	describe('prop()', () => {
 		it('should return a matcher function', () => {
+			// @ts-ignore
 			const matcher = prop();
 
 			expect(matcher).to.be.a('function');
@@ -103,6 +94,7 @@ describe('hpq', () => {
 
 	describe('attr()', () => {
 		it('should return a matcher function', () => {
+			// @ts-ignore
 			const matcher = attr();
 
 			expect(matcher).to.be.a('function');
@@ -180,12 +172,6 @@ describe('hpq', () => {
 	});
 
 	describe('query()', () => {
-		it('should return a matcher function', () => {
-			const matcher = query();
-
-			expect(matcher).to.be.a('function');
-		});
-
 		it('should return array of parse on matched nodes', () => {
 			const result = parse(element, { text: query('p', text()) });
 
diff --git a/tsconfig.decl.json b/tsconfig.decl.json
new file mode 100644
index 0000000..7e6747b
--- /dev/null
+++ b/tsconfig.decl.json
@@ -0,0 +1,11 @@
+{
+	"extends": "./tsconfig.json",
+	"compilerOptions": {
+		"declaration": true,
+		"emitDeclarationOnly": true,
+		"outDir": "./es",
+		"rootDir": "src",
+		"noEmit": false
+	},
+	"include": ["src"]
+}
diff --git a/tsconfig.json b/tsconfig.json
index 26a7d8c..e9c4b06 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -1,13 +1,10 @@
 {
-  "compilerOptions": {
-    "target": "ES2017",
-    "lib": ["ES2017", "DOM", "DOM.Iterable"],
-    "outDir": "./es",
-    "strict": true,
-    "allowJs": true,
-    "checkJs": true,
-    "declaration": true,
-    "emitDeclarationOnly": true
-  },
-  "include": ["src/**/*"]
+	"compilerOptions": {
+		"target": "ES2017",
+		"lib": ["ES2017", "DOM", "DOM.Iterable"],
+		"moduleResolution": "node",
+		"strict": true,
+		"noEmit": true
+	},
+	"include": ["src", "test"]
 }