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1. Check if user input is a palindrome. Check if user input is a palindrome.

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   function palindrome (s) {

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     const lowerRegStr = s.toLowerCase().replace(/[\W_,.]/g, '')

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     const reverseStr = lowerRegStr.split('').reverse().join('')

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     return reverseStr === lowerRegStr

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   }

2. A primitive search of an array of ob... A primitive search of an array of objects arrays.

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   const data = [

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     {

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       "query": ["about", "us"], // Keywords

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       "path": "/about" // page path

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     },