LowerCase UpperCase ignore compare

by Dave Lee

HTML

Matching word:<label> ABC</label>&nbsp;&nbsp;
 <input type="input" id="guessLetter" maxlength="1" size="1"/>
 <input type="button" id="btnGuess" value="click" />

CSS

label {
  color: blue;
  font-weight: bold;
}

JavaScript

$("#btnGuess").click(guessWord);
    
  function guessWord() {
  
   var letter = $("#guessLetter").val();
   var word = 'ABC';
   var pattern = RegExp(letter, 'gi'); // pattern: /a/gi

   var result = word.match(pattern);
   alert('Ignore case sensitive:' + result);
   
  }