Initial commit: Developer Tools MVP with visual editor

- Complete React app with 7 developer tools
- JSON Tool with visual structured editor
- Serialize Tool with visual structured editor
- URL, Base64, CSV/JSON, Beautifier, Diff tools
- Responsive navigation with dropdown menu
- Dark/light mode toggle
- Mobile-responsive design with sticky header
- All tools working with copy/paste functionality

node_modules/es-object-atoms/test/index.js

@@ -0,0 +1,38 @@
+'use strict';
+
+var test = require('tape');
+
+var $Object = require('../');
+var isObject = require('../isObject');
+var ToObject = require('../ToObject');
+var RequireObjectCoercible = require('..//RequireObjectCoercible');
+
+test('errors', function (t) {
+	t.equal($Object, Object);
+	// @ts-expect-error
+	t['throws'](function () { ToObject(null); }, TypeError);
+	// @ts-expect-error
+	t['throws'](function () { ToObject(undefined); }, TypeError);
+	// @ts-expect-error
+	t['throws'](function () { RequireObjectCoercible(null); }, TypeError);
+	// @ts-expect-error
+	t['throws'](function () { RequireObjectCoercible(undefined); }, TypeError);
+
+	t.deepEqual(RequireObjectCoercible(true), true);
+	t.deepEqual(ToObject(true), Object(true));
+	t.deepEqual(ToObject(42), Object(42));
+	var f = function () {};
+	t.equal(ToObject(f), f);
+
+	t.equal(isObject(undefined), false);
+	t.equal(isObject(null), false);
+	t.equal(isObject({}), true);
+	t.equal(isObject([]), true);
+	t.equal(isObject(function () {}), true);
+
+	var obj = {};
+	t.equal(RequireObjectCoercible(obj), obj);
+	t.equal(ToObject(obj), obj);
+
+	t.end();
+});