How to validate a letter and whitespace only input via JavaScript regular expression

Question

I have an input type=\"text\" for names in my HTML code. I need to make sure that it is a string with letters from \'a\' to \'z\' and \'A\' to \'Z\' only, along

Answer 1

check out regular expressions and patterns.

function f1() 
{  
   var x=document.f.name.value;  
   return /^[A-z ]+$/.test(x);
}