JSFiddle - React, Tailwind, and code Playground

by krustnic

JavaScript

function isPoly(seq) {
	seq = seq.replace(/\s|[0-9]*/g, '')
	let i = 0
  let j = seq.length - 1
  
  while(i<j) {
  	if (seq[i] !== seq[j])  {
    	return false
    }
    
    i += 1
    j -= 1
  }
  
	return true
}

console.log(isPoly('шалаш'))
console.log(isPoly('а123 роза упала на лапу азора'))
console.log(isPoly('азор'))