nl2br() equivalent in javascript [duplicate]

Answer 1

Here is a function nl2br in php.js.

function nl2br (str, is_xhtml) {
  // http://kevin.vanzonneveld.net
  // +   original by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
  // +   improved by: Philip Peterson
  // +   improved by: Onno Marsman
  // +   improved by: Atli Þór
  // +   bugfixed by: Onno Marsman
  // +      input by: Brett Zamir (http://brett-zamir.me)
  // +   bugfixed by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
  // +   improved by: Brett Zamir (http://brett-zamir.me)
  // +   improved by: Maximusya
  // *     example 1: nl2br('Kevin\nvan\nZonneveld');
  // *     returns 1: 'Kevin
\nvan
\nZonneveld'
  // *     example 2: nl2br("\nOne\nTwo\n\nThree\n", false);
  // *     returns 2: '
\nOne
\nTwo
\n
\nThree
\n'
  // *     example 3: nl2br("\nOne\nTwo\n\nThree\n", true);
  // *     returns 3: '
\nOne
\nTwo
\n
\nThree
\n'
  var breakTag = (is_xhtml || typeof is_xhtml === 'undefined') ? '
' : '
'; // Adjust comment to avoid issue on phpjs.org display

  return (str + '').replace(/([^>\r\n]?)(\r\n|\n\r|\r|\n)/g, '$1' + breakTag + '$2');
}