gulpfile.js
function replace(format, data) {
  return format.replace(/{(\w+)}/g, (m, name) => (data[name] ? data[name] : ''));
}
function replace(format, data) {
  return format.replace(/{(\w+)}/g, (m, name) => (data[name] ? data[name] : ''));
}
function replace ( format , data ) { return format . replace ( / {(\w+)} / g , ( m , name ) => ( data [ name ] ? data [ name ] : '' ) ) ; }
replaces {id} tokens
replaces { id } tokens