function stringify(content) {
  if (typeof content === 'string' && stringifiedRegexp.test(content)) {
    return content;
  }
  return JSON.stringify(content, null, 2);
}
function stringify(content) {
  if (typeof content === 'string' && stringifiedRegexp.test(content)) {
    return content;
  }
  return JSON.stringify(content, null, 2);
}
function stringify ( content ) { if ( typeof content === 'string' && stringifiedRegexp . test ( content ) ) { return content ; } return JSON . stringify ( content , null , 2 ) ; }
If already stringified - return original content
@param {Object|Array} content
@return {string}
If already stringified - return original content