packages/jss/src/utils/toCss.js
function indentStr(str: string, indent: number): string {
  let result = ''
  for (let index = 0; index < indent; index++) result += '  '
  return result + str
}
function indentStr(str: string, indent: number): string {
  let result = ''
  for (let index = 0; index < indent; index++) result += '  '
  return result + str
}
function indentStr ( str : string , indent : number ) : string { let result = '' for ( let index = 0 ; index < indent ; index ++ ) result += '  ' return result + str }
Indent a string.
http://jsperf.com/array-join-vs-for
Indent a string . http : // jsperf . com / array - join - vs - for