Function trim

modules/script/jsUnit.js:269–286

(str)

}

function trim(str) {
  if (str == null)
    return null;

  var startingIndex = 0;
  var endingIndex   = str.length-1;

  while (str.substring(startingIndex, startingIndex+1) == ' ')
    startingIndex++;

  while (str.substring(endingIndex, endingIndex+1) == ' ')
    endingIndex--;

  if (endingIndex < startingIndex)
    return '';

  return str.substring(startingIndex, endingIndex+1);
}

function isBlank(str) {
  return trim(str) == '';