A JavaScript function for removing spaces in a string.

removeSpaces.js

/*********************************************************
 * Removes space characters from the input string.
 * @param {String} inputString
 * @return {String} "cleaned up" inputString.
 *********************************************************/
 function removeSpaces( inputString ) {

  // If the inputString is empty, return an error.
  if (!inputString) return "Error";

  /**
   * For each character in inputString,
   * if the character is NOT a space character,
   * append it to the string to return.
   */
   var modifiedString = "";
   for (var i in inputString) 
     if (inputString[i] != " ")
       modifiedString += inputString[i];

  // Return de-spaced string.
  return modifiedString;
}