- Use Array.prototype.reduce(), comparing the length of objects to find the longest one.
- If multiple objects have the same length, the first one will be returned.
- Returns undefined if no arguments are provided.
//#Source https://bit.ly/2neWfJ2 const longestItem = (...vals) => [...vals].sort((a, b) => b.length - a.length); console.log(longestItem('this', 'is', 'a', 'testcase')); console.log(longestItem(...['a', 'ab', 'abc'])); console.log(longestItem(...['a', 'ab', 'abc'], 'abcd')); console.log(longestItem([1, 2, 3], [1, 2], [1, 2, 3, 4, 5])); console.log(longestItem([1, 2, 3], 'foobar'));
testcase abc abcd [1,2,3,4,5] foobar
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