如何刪除飛鏢中的cookie

Question

如何在客戶端上運行時刪除飛鏢中的cookie？

我試圖將其設置爲使用

document.cookie = 'cookie_to_be_deleted=""'; 

一個空字符串來刪除它。如果我這一行後打印cookie的值，我得到的鍵值對的分號分隔的列表用兩個實例「cookie_to_be_deleted」。其中一個具有我希望刪除的原始值，另一個具有值爲空的字符串。

Answer 1

試試這個：

Date then = new Date.fromEpoch(0, new TimeZone.utc()); 
document.cookie = 'cookie_to_be_deleted=; expires=' + then.toString() + '; path=/'; 

在https://gist.github.com/d2m/1935339

/* 
* dart document.cookie lib 
* 
* ported from 
* http://www.quirksmode.org/js/cookies.html 
* 
*/ 

void createCookie(String name, String value, int days) { 
    String expires; 
    if (days != null) { 
    Date now = new Date.now(); 
    Date date = new Date.fromEpoch(now.value + days*24*60*60*1000, new TimeZone.local()); 
    expires = '; expires=' + date.toString();  
    } else { 
    Date then = new Date.fromEpoch(0, new TimeZone.utc()); 
    expires = '; expires=' + then.toString(); 
    } 
    document.cookie = name + '=' + value + expires + '; path=/'; 
} 

String readCookie(String name) { 
    String nameEQ = name + '='; 
    List<String> ca = document.cookie.split(';'); 
    for (int i = 0; i < ca.length; i++) { 
    String c = ca[i]; 
    c = c.trim(); 
    if (c.indexOf(nameEQ) == 0) { 
     return c.substring(nameEQ.length); 
    } 
    } 
    return null; 
} 

void eraseCookie(String name) { 
    createCookie(name, '', null); 
}