nl_tokens: * @method compact () @returns String @short Compacts all white space in the string to a single space and trims the ends . @example
pl_tokens: function ( ) { return this . trim ( ) . <mask> ( / ([\r\n\s　])+/g , f nction(m a tch,  w itespace){ return whitespace === '　' ? w itespace : ' '; } ) ; }