Question

How to check if lowercase and uppercase characters in a string are in same order with JavaScript

Answer 1

function lowercase_uppercase_characters_same_order(s) { 
    var len = s.length;
    var lower_s = "", upper_s = ""; 
          
    for (var i = 0; i < len; i++) { 
         if (s[i] >= 'A' && s[i] <= 'Z') 
             upper_s += s[i];
           
         if (s[i] >= 'a' && s[i] <= 'z') 
             lower_s += s[i]; 
    } 
    return lower_s.toUpperCase() === upper_s; 
} 
     
 
var s = "JAjaVvAaSscCRripItPT"; // JAVASCRIPTjavascript
       
if (lowercase_uppercase_characters_same_order(s)) 
    document.write("Yes");
else
    document.write("No");
 
 
 
/*
run:
  
Yes 
  
*/

 

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