title: Notepad++ replace lines containing only spaces and/or tabs
body: <p>How can I replace all the lines in my code that contain only spaces and/or tabs with empty lines?</p>
  
  <p>Example:</p>
  
  <pre><code>for(var l=0,leng=one.codes.length;l&lt;leng;l++){
  ******
      var oneCode = one.codes[l];
      var temp = new Object();
  ******
      temp.code = oneCode.c;
  ******
      if(two &gt;= 1000){
          var alex = "";
          var bob = 0;
      }
  ******
  }
  </code></pre>
  
  <p>The * symbols are the spaces and tabs. I want them removed without changing the rest of the code format. I want this lines to remain blank but without containing any characters.</p>