Simple client-side cookie reader/writer module in Typescript

cookie.js

module cookie {

    export function read(name: string) {
        var result = new RegExp('(?:^|; )' + encodeURIComponent(name) + '=([^;]*)').exec(document.cookie);
        return result ? result[1] : null;
    }
    
    export function write(name: string, value: string, days?: number) {
        if (!days) {
            days = 365 * 20;
        }
        
        var date = new Date();
        date.setTime(date.getTime() + (days * 24 * 60 * 60 * 1000));
        
        var expires = "; expires=" + date.toUTCString();
        
        document.cookie = name + "=" + value + expires + "; path=/";
    }
    
    export function remove(name: string) {
        write(name, "", -1);
    }
	
}

These days, I'm liking this Typescript solution better - it's safer, it's enumerable, and it performs better when reading multiple cookies.

export interface CookieMap {
  [key: string]: string;
};

/**
 * Parse and decode raw cookies from `document.cookie` to a key/value map.
 */
export function parseDocumentCookies(cookies: string): CookieMap {
  let pairs = cookies
    .split("; ")
    .map(pair => pair.split(/=(.*)$/,2).map(decodeURIComponent));
  
  let object: CookieMap = {};

  for (let [key, value] of pairs) {
    object[key] = value;
  }

  return object;
}