Convert WS/HTTP links with JavaScript

http-to-ws.js

/**
 * Converts an HTTP(S) url to a WS(S) URL
 * Example:
 *     httpUrlToWebSockeUrl("http://www.example.com/") -> ws://www.example.com/
 *     httpUrlToWebSockeUrl("https://www.example.com/") -> wss://www.example.com/
 * 
 * @param {string} url
 * @return {string}
 */
function httpUrlToWebSockeUrl(url)
{
    return url.replace(/(http)(s)?\:\/\//, "ws$2://");
}

ws-to-http.js

/**
 * Converts a WS(S) url to an HTTP(S) URL
 * Example:
 *     webSocketUrlToHttpUrl("ws://www.example.com/") -> http://www.example.com/
 *     webSocketUrlToHttpUrl("wss://www.example.com/") -> https://www.example.com/
 * 
 * @param {string} url
 * @return {string}
 */
function webSocketUrlToHttpUrl(url)
{
    return url.replace(/(ws)(s)?\:\/\//, "http$2://");
}

this is REALLY REALLY useful
thanks