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            "title": "Is Object Empty",
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            "content": "<p>Given an object or an array, return if it is empty.</p>\n\n<ul>\n\t<li>An empty object contains no key-value pairs.</li>\n\t<li>An empty array contains no elements.</li>\n</ul>\n\n<p>You may assume the object or array is the output of&nbsp;<code>JSON.parse</code>.</p>\n\n<p>&nbsp;</p>\n<p><strong class=\"example\">Example 1:</strong></p>\n\n<pre>\n<strong>Input:</strong> obj = {&quot;x&quot;: 5, &quot;y&quot;: 42}\n<strong>Output:</strong> false\n<strong>Explanation:</strong> The object has 2 key-value pairs so it is not empty.\n</pre>\n\n<p><strong class=\"example\">Example 2:</strong></p>\n\n<pre>\n<strong>Input:</strong> obj = {}\n<strong>Output:</strong> true\n<strong>Explanation:</strong> The object doesn&#39;t have any key-value pairs so it is empty.\n</pre>\n\n<p><strong class=\"example\">Example 3:</strong></p>\n\n<pre>\n<strong>Input:</strong> obj = [null, false, 0]\n<strong>Output:</strong> false\n<strong>Explanation:</strong> The array has 3 elements so it is not empty.\n</pre>\n\n<p>&nbsp;</p>\n<p><strong>Constraints:</strong></p>\n\n<ul>\n\t<li><code>obj</code> is a valid JSON object or array</li>\n\t<li><code>2 &lt;= JSON.stringify(obj).length &lt;= 10<sup>5</sup></code></li>\n</ul>\n\n<p>&nbsp;</p>\n<strong>Can you solve it in O(1) time?</strong>",
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                    "code": "/**\n * @param {Object|Array} obj\n * @return {boolean}\n */\nvar isEmpty = function(obj) {\n    \n};",
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                    "code": "type JSONValue = null | boolean | number | string | JSONValue[] | { [key: string]: JSONValue };\ntype Obj = Record<string, JSONValue> | JSONValue[]\n\nfunction isEmpty(obj: Obj): boolean {\n\t\n};",
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