Trim() - returns a string with both Left and Right blank spaces removed - Node.js String

Node.js examples for String:Trim

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Description

Trim() - returns a string with both Left and Right blank spaces removed

Demo Code





function Trim(str) {
  return RTrim(LTrim(str));
}
function LTrim(str) {
  var whitespace = new String(" \t\n\r");
  var s = new String(str);

  if (whitespace.indexOf(s.charAt(0)) != -1) {
    var j=0//from w  ww.j a  v  a  2 s .  co m
    var i = s.length;
    
    while (j < i && whitespace.indexOf(s.charAt(j)) != -1) {
      j++;
    }
    s = s.substring(j, i);
  }
  return s;
}
function RTrim(str) {
  var whitespace = new String(" \t\n\r");
  var s = new String(str);

  if (whitespace.indexOf(s.charAt(s.length-1)) != -1) {
    var i = s.length - 1;
  
    while (i >= 0 && whitespace.indexOf(s.charAt(i)) != -1) {
      i--;
    }
  s = s.substring(0, i+1);
  }
return s;
}

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