feat: rewrite programming-challenges CLI (#3)

challenges/is-palindrome/solutions/javascript/function/solution.js

@@ -0,0 +1,17 @@
+import readline from 'readline'
+
+const input = []
+const readlineInterface = readline.createInterface({
+  input: process.stdin,
+  output: process.stdout
+})
+readlineInterface.on('line', (value) => {
+  input.push(value)
+})
+readlineInterface.on('close', solution)
+
+function solution() {
+  const string = input[0].replace(/ /g, '').toLowerCase()
+  const isPalindrome = string.split('').reverse().join('') === string
+  console.log(isPalindrome)
+}