Function substitute

src/utils/strings.js:18–29

(str, obj)

}

export function substitute(str, obj) {
  if (typeof str === 'string') {
    return str.replace((/\\?\{([^{}]+)\}/g), function(match, name){
      if (match.charAt(0) === '\\') {
        return match.slice(1);
      }
      return (obj[name] === null || obj[name] === undefined) ? '' : obj[name];
    });
  } else if (typeof str === 'function') {
    return str(obj);
  }
}

export function toArray(value, sep) {
  if (value === null || value === undefined) {