truncate string

truncate.js

  /**
   * truncate title
   * @param {String} text suffix
   * @param {Number} size text
   * @return {String} text truncate
   */

  var truncateText = function(str, size, suffix) {
    var newTitle;

    if (str.length > size) {
      newTitle = str.substr(0, size - suffix.length) + suffix;
    } else {
      if (str.length + suffix.length > size) {
        newTitle = str.substr(0, (str.length - suffix.length)) + suffix;
      } else {
        newTitle = str;
      }
    }
    return newTitle;
  };