diff --git a/js/package.json b/js/package.json
index 66940bdb..d7166095 100644
--- a/js/package.json
+++ b/js/package.json
@@ -4,10 +4,11 @@
   "private": true,
   "devDependencies": {
     "mocha": "^8.0.1",
-    "@rdfjs/data-model": "^1.1.2"
+    "@rdfjs/data-model": "^1.1.2",
+    "standard": "^14.3.4"
   },
   "scripts": {
-    "test": "wasm-pack build --dev --target nodejs && mocha",
+    "test": "standard test/*.js && wasm-pack build --dev --target nodejs && mocha",
     "build": "wasm-pack build --release --target nodejs && sed -i 's/oxigraph_js/oxigraph/g' pkg/package.json",
     "release": "wasm-pack pack && wasm-pack publish"
   }
diff --git a/js/test/model.js b/js/test/model.js
index eaf88fcc..084698b8 100644
--- a/js/test/model.js
+++ b/js/test/model.js
@@ -1,3 +1,2 @@
-const { MemoryStore } = require('../pkg/oxigraph.js');
-const assert = require('assert');
-require('../node_modules/@rdfjs/data-model/test/index.js')((new MemoryStore()).dataFactory);
+const { MemoryStore } = require('../pkg/oxigraph.js')
+require('../node_modules/@rdfjs/data-model/test/index.js')((new MemoryStore()).dataFactory)
diff --git a/js/test/store.js b/js/test/store.js
index 130cec9c..d6c52d6a 100644
--- a/js/test/store.js
+++ b/js/test/store.js
@@ -1,105 +1,107 @@
-const { MemoryStore } = require('../pkg/oxigraph.js');
-const assert = require('assert');
-const dataFactory = require('@rdfjs/data-model');
-
-const ex = dataFactory.namedNode('http://example.com');
-
-describe('MemoryStore', function() {
-  describe('#add()', function() {
-    it('an added quad should be in the store', function() {
-      const store = new MemoryStore();
-      store.add(dataFactory.triple(ex, ex, ex));
-      assert(store.has(dataFactory.triple(ex, ex, ex)));
-    });
-  });
-
-  describe('#delete()', function() {
-    it('an removed quad should not be in the store anymore', function() {
-      const store = new MemoryStore([dataFactory.triple(ex, ex, ex)]);
-      assert(store.has(dataFactory.triple(ex, ex, ex)));
+/* global describe, it */
+
+const { MemoryStore } = require('../pkg/oxigraph.js')
+const assert = require('assert')
+const dataFactory = require('@rdfjs/data-model')
+
+const ex = dataFactory.namedNode('http://example.com')
+
+describe('MemoryStore', function () {
+  describe('#add()', function () {
+    it('an added quad should be in the store', function () {
+      const store = new MemoryStore()
+      store.add(dataFactory.triple(ex, ex, ex))
+      assert(store.has(dataFactory.triple(ex, ex, ex)))
+    })
+  })
+
+  describe('#delete()', function () {
+    it('an removed quad should not be in the store anymore', function () {
+      const store = new MemoryStore([dataFactory.triple(ex, ex, ex)])
+      assert(store.has(dataFactory.triple(ex, ex, ex)))
       store.delete(dataFactory.triple(ex, ex, ex))
-      assert(!store.has(dataFactory.triple(ex, ex, ex)));
-    });
-  });
-
-  describe('#has()', function() {
-    it('an added quad should be in the store', function() {
-      const store = new MemoryStore([dataFactory.triple(ex, ex, ex)]);
-      assert(store.has(dataFactory.triple(ex, ex, ex)));
-    });
-  });
-
-  describe('#size()', function() {
-    it('A store with one quad should have 1 for size', function() {
-      const store = new MemoryStore([dataFactory.triple(ex, ex, ex)]);
-      assert.strictEqual(1, store.size);
-    });
-  });
-
-  describe('#match_quads()', function() {
-    it('blank pattern should return all quads', function() {
-      const store = new MemoryStore([dataFactory.triple(ex, ex, ex)]);
-      const results = store.match();
-      assert.strictEqual(1, results.length);
-      assert(dataFactory.triple(ex, ex, ex).equals(results[0]));
-    });
-  });
-
-  describe('#query()', function() {
-    it('ASK true', function() {
-      const store = new MemoryStore([dataFactory.triple(ex, ex, ex)]);
-      assert.strictEqual(true, store.query("ASK { ?s ?s ?s }"));
-    });
-
-    it('ASK false', function() {
-      const store = new MemoryStore();
-      assert.strictEqual(false, store.query("ASK { FILTER(false)}"));
-    });
-
-    it('CONSTRUCT', function() {
-      const store = new MemoryStore([dataFactory.triple(ex, ex, ex)]);
-      const results = store.query("CONSTRUCT { ?s ?p ?o } WHERE { ?s ?p ?o }");
-      assert.strictEqual(1, results.length);
-      assert(dataFactory.triple(ex, ex, ex).equals(results[0]));
-    });
-
-    it('SELECT', function() {
-      const store = new MemoryStore([dataFactory.triple(ex, ex, ex)]);
-      const results = store.query("SELECT ?s WHERE { ?s ?p ?o }");
-      assert.strictEqual(1, results.length);
-      assert(ex.equals(results[0].get("s")));
-    });
-  });
-
-  describe('#load()', function() {
-    it('load NTriples in the default graph', function() {
-      const store = new MemoryStore();
-      store.load("<http://example.com> <http://example.com> <http://example.com> .", "application/n-triples");
-      assert(store.has(dataFactory.triple(ex, ex, ex)));
-    });
-
-    it('load NTriples in an other graph', function() {
-      const store = new MemoryStore();
-      store.load("<http://example.com> <http://example.com> <http://example.com> .", "application/n-triples", null, ex);
-      assert(store.has(dataFactory.quad(ex, ex, ex, ex)));
-    });
-
-    it('load Turtle with a base IRI', function() {
-      const store = new MemoryStore();
-      store.load("<http://example.com> <http://example.com> <> .", "text/turtle", "http://example.com");
-      assert(store.has(dataFactory.triple(ex, ex, ex)));
-    });
-
-    it('load NQuads', function() {
-      const store = new MemoryStore();
-      store.load("<http://example.com> <http://example.com> <http://example.com> <http://example.com> .", "application/n-quads");
-      assert(store.has(dataFactory.quad(ex, ex, ex, ex)));
-    });
-
-    it('load TriG with a base IRI', function() {
-      const store = new MemoryStore();
-      store.load("GRAPH <> { <http://example.com> <http://example.com> <> }", "application/trig", "http://example.com");
-      assert(store.has(dataFactory.quad(ex, ex, ex, ex)));
-    });
-  });
-});
+      assert(!store.has(dataFactory.triple(ex, ex, ex)))
+    })
+  })
+
+  describe('#has()', function () {
+    it('an added quad should be in the store', function () {
+      const store = new MemoryStore([dataFactory.triple(ex, ex, ex)])
+      assert(store.has(dataFactory.triple(ex, ex, ex)))
+    })
+  })
+
+  describe('#size()', function () {
+    it('A store with one quad should have 1 for size', function () {
+      const store = new MemoryStore([dataFactory.triple(ex, ex, ex)])
+      assert.strictEqual(1, store.size)
+    })
+  })
+
+  describe('#match_quads()', function () {
+    it('blank pattern should return all quads', function () {
+      const store = new MemoryStore([dataFactory.triple(ex, ex, ex)])
+      const results = store.match()
+      assert.strictEqual(1, results.length)
+      assert(dataFactory.triple(ex, ex, ex).equals(results[0]))
+    })
+  })
+
+  describe('#query()', function () {
+    it('ASK true', function () {
+      const store = new MemoryStore([dataFactory.triple(ex, ex, ex)])
+      assert.strictEqual(true, store.query('ASK { ?s ?s ?s }'))
+    })
+
+    it('ASK false', function () {
+      const store = new MemoryStore()
+      assert.strictEqual(false, store.query('ASK { FILTER(false)}'))
+    })
+
+    it('CONSTRUCT', function () {
+      const store = new MemoryStore([dataFactory.triple(ex, ex, ex)])
+      const results = store.query('CONSTRUCT { ?s ?p ?o } WHERE { ?s ?p ?o }')
+      assert.strictEqual(1, results.length)
+      assert(dataFactory.triple(ex, ex, ex).equals(results[0]))
+    })
+
+    it('SELECT', function () {
+      const store = new MemoryStore([dataFactory.triple(ex, ex, ex)])
+      const results = store.query('SELECT ?s WHERE { ?s ?p ?o }')
+      assert.strictEqual(1, results.length)
+      assert(ex.equals(results[0].get('s')))
+    })
+  })
+
+  describe('#load()', function () {
+    it('load NTriples in the default graph', function () {
+      const store = new MemoryStore()
+      store.load('<http://example.com> <http://example.com> <http://example.com> .', 'application/n-triples')
+      assert(store.has(dataFactory.triple(ex, ex, ex)))
+    })
+
+    it('load NTriples in an other graph', function () {
+      const store = new MemoryStore()
+      store.load('<http://example.com> <http://example.com> <http://example.com> .', 'application/n-triples', null, ex)
+      assert(store.has(dataFactory.quad(ex, ex, ex, ex)))
+    })
+
+    it('load Turtle with a base IRI', function () {
+      const store = new MemoryStore()
+      store.load('<http://example.com> <http://example.com> <> .', 'text/turtle', 'http://example.com')
+      assert(store.has(dataFactory.triple(ex, ex, ex)))
+    })
+
+    it('load NQuads', function () {
+      const store = new MemoryStore()
+      store.load('<http://example.com> <http://example.com> <http://example.com> <http://example.com> .', 'application/n-quads')
+      assert(store.has(dataFactory.quad(ex, ex, ex, ex)))
+    })
+
+    it('load TriG with a base IRI', function () {
+      const store = new MemoryStore()
+      store.load('GRAPH <> { <http://example.com> <http://example.com> <> }', 'application/trig', 'http://example.com')
+      assert(store.has(dataFactory.quad(ex, ex, ex, ex)))
+    })
+  })
+})