Commit73f0fab

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feat: add Strings section with checkPalindrome algorithm

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	`1`	`+// JavaScript implementation of palindrome check`
	`2`	`+// More details: https://medium.freecodecamp.org/two-ways-to-check-for-palindromes-in-javascript-64fea8191fd7`
	`3`	`+/**`
	`4`	`+ *@description Check if the input is a palindrome`
	`5`	`+ *`
	`6`	`+ *@param {string\|number} input`
	`7`	`+ *@returns {boolean} is input a palindrome?`
	`8`	`+ */`
	`9`	`+functioncheckPalindrome(input){`
	`10`	`+// Only strings and numbers can be palindrome`
	`11`	`+if(typeofinput!=='string'&&typeofinput!=='number'){`
	`12`	`+returnnull;`
	`13`	`+}`
	`14`	`+`
	`15`	`+// Convert given number to string`
	`16`	`+if(typeofinput==='number'){`
	`17`	`+input=String(input);`
	`18`	`+}`
	`19`	`+`
	`20`	`+returninput===input.split('').reverse().join('');`
	`21`	`+}`
	`22`	`+`
	`23`	`+// Test`
	`24`	`+letinput='ABCDCBA';`
	`25`	`+console.log(checkPalindrome(input));// true`
	`26`	`+`
	`27`	`+input=12321;`
	`28`	`+console.log(checkPalindrome(input));// true`
	`29`	`+`
	`30`	`+input=123.321;`
	`31`	`+console.log(checkPalindrome(input));// true`
	`32`	`+`
	`33`	`+input='ABCD';`
	`34`	`+console.log(checkPalindrome(input));// false`
	`35`	`+`
	`36`	`+input=123.4;`
	`37`	`+console.log(checkPalindrome(input));// false`
	`38`	`+`
	`39`	`+input={};`
	`40`	`+console.log(checkPalindrome(input))// null`

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