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Implement two possible solutions to check if a gven string is palindrome or not, write tests

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	`1`	`+`
	`2`	`+// Solution 1`
	`3`	`+// Reverse the string and store the result in an variable than compare string to the reversed value`
	`4`	`+// function palindrome(str) {`
	`5`	`+// // const reverseStr = str.split("").reduce((rev, char) => char + rev, "");`
	`6`	`+// const reverseStr = str.split("").reverse().join("");`
	`7`	`+// return reverseStr === str;`
	`8`	`+// }`
	`9`	`+`
	`10`	`+// Solution 2`
	`11`	`+function palindrome(str) {`
	`12`	`+ return str.split('').every((char, i, arr) => char === arr[arr.length - i - 1])`
	`13`	`+}`
	`14`	`+module.exports = palindrome;`

Lines changed: 34 additions & 0 deletions

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	`1`	`+const palindrome = require('./index');`
	`2`	`+`
	`3`	`+test("palindrome function is defined", () => {`
	`4`	`+ expect(typeof palindrome).toEqual("function");`
	`5`	`+})`
	`6`	`+`
	`7`	`+`
	`8`	`+test("'aba' is palindrome", () => {`
	`9`	`+ expect(palindrome("aba")).toBeTruthy();`
	`10`	`+})`
	`11`	`+`
	`12`	`+test("' aba' is not palindrome", () => {`
	`13`	`+ expect(palindrome(" aba")).toBeFalsy();`
	`14`	`+})`
	`15`	`+`
	`16`	`+test("'aba ' is not palindrome", () => {`
	`17`	`+ expect(palindrome("aba ")).toBeFalsy();`
	`18`	`+})`
	`19`	`+`
	`20`	`+test('"greetings" is not a palindrome', () => {`
	`21`	`+ expect(palindrome('greetings')).toBeFalsy();`
	`22`	`+});`
	`23`	`+`
	`24`	`+test('"1000000001" a palindrome', () => {`
	`25`	`+ expect(palindrome('1000000001')).toBeTruthy();`
	`26`	`+});`
	`27`	`+`
	`28`	`+test('"Fish hsif" is not a palindrome', () => {`
	`29`	`+ expect(palindrome('Fish hsif')).toBeFalsy();`
	`30`	`+});`
	`31`	`+`
	`32`	`+test('"pennep" a palindrome', () => {`
	`33`	`+ expect(palindrome('pennep')).toBeTruthy();`
	`34`	`+});`

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