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            "title": "Add Two Promises",
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            "content": "Given two promises <code>promise1</code> and <code>promise2</code>, return a new promise. <code>promise1</code> and <code>promise2</code>&nbsp;will both resolve with a number. The returned promise should resolve with the sum of the two numbers.\n<p>&nbsp;</p>\n<p><strong class=\"example\">Example 1:</strong></p>\n\n<pre>\n<strong>Input:</strong> \npromise1 = new Promise(resolve =&gt; setTimeout(() =&gt; resolve(2), 20)), \npromise2 = new Promise(resolve =&gt; setTimeout(() =&gt; resolve(5), 60))\n<strong>Output:</strong> 7\n<strong>Explanation:</strong> The two input promises resolve with the values of 2 and 5 respectively. The returned promise should resolve with a value of 2 + 5 = 7. The time the returned promise resolves is not judged for this problem.\n</pre>\n\n<p><strong class=\"example\">Example 2:</strong></p>\n\n<pre>\n<strong>Input:</strong> \npromise1 = new Promise(resolve =&gt; setTimeout(() =&gt; resolve(10), 50)), \npromise2 = new Promise(resolve =&gt; setTimeout(() =&gt; resolve(-12), 30))\n<strong>Output:</strong> -2\n<strong>Explanation:</strong> The two input promises resolve with the values of 10 and -12 respectively. The returned promise should resolve with a value of 10 + -12 = -2.\n</pre>\n\n<p>&nbsp;</p>\n<p><strong>Constraints:</strong></p>\n\n<ul>\n\t<li><code>promise1</code> and <code>promise2</code> are&nbsp;promises that resolve&nbsp;with a number</li>\n</ul>\n",
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            "exampleTestcases": "new Promise(resolve => setTimeout(() => resolve(2), 20))\nnew Promise(resolve => setTimeout(() => resolve(5), 60))\nnew Promise(resolve => setTimeout(() => resolve(10), 50))\nnew Promise(resolve => setTimeout(() => resolve(-12), 30))",
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                    "code": "/**\n * @param {Promise} promise1\n * @param {Promise} promise2\n * @return {Promise}\n */\nvar addTwoPromises = async function(promise1, promise2) {\n    \n};\n\n/**\n * addTwoPromises(Promise.resolve(2), Promise.resolve(2))\n *   .then(console.log); // 4\n */",
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                    "code": "type P = Promise<number>\n\nasync function addTwoPromises(promise1: P, promise2: P): P {\n\t\n};\n\n/**\n * addTwoPromises(Promise.resolve(2), Promise.resolve(2))\n *   .then(console.log); // 4\n */",
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            "sampleTestCase": "new Promise(resolve => setTimeout(() => resolve(2), 20))\nnew Promise(resolve => setTimeout(() => resolve(5), 60))",
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