rajkundalia

/**
 * This function checks if multiple tabs for the application are not using the document.cookie.
 * The approach here is as follows:
 * 1. Fetch the cookies and split it and then fetch the value for the cookie name i.e. tabNumber.
 * 2. We check if the cookie is value for tabNumber is > 0, for the first time it won't be and we go to the else part
 * where we set the value to be tabNumber=1. The tab would load successfully.
 * 3. Now when we open the second tab in the same browser session, the cookie will have tabNumber=1, we extract the value
 * and we check if cookieValue > 0 and we show an alert saying second tab was opened.
 * 4. The line window.open(window.location, '_self') was added so that we get redirected using the same URL and we don't
 * let the user open the tab anyhow (my main requirement).

rajkundalia

function createGUID() {
    let guid = 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, (c) => {
        let r = Math.random() * 16 | 0,
            v = c == 'x' ? r : (r & 0x3 | 0x8);
        return v.toString(16);
    });
    return guid;
}

/**