Javascript / Jquery中将字符串转换为唯一哈希值

Question

Javascript / Jquery中将字符串转换为唯一哈希值

5

有没有一种Javascript/Jquery函数可以从字符串中生成哈希标签？我已经寻找了几分钟，但没能找到:/也许还有其他方法吗？我有一个Symfony 2.4应用程序。

我的表单数据被序列化为字符串，例如：

"cloud_adm_dictionary_type%5Bitems%5D%5B0%5D%5BdictName%5D=Otwartabbb&cloud_adm_dictionary_type%5Bitems%5D%5B0%5D%5BdictValue1%5D=fa-comments-o+text-muted&cloud_adm_dictionary_type%5Bitems%5D%5B0%5D%5BdictActive%5D=1&cloud_adm_dictionary_type%5Bitems%5D%5B1%5D%5BdictName%5D=Wycena&cloud_adm_dictionary_type%5Bitems%5D%5B1%5D%5BdictValue1%5D=fa-comments-o+text-muted&cloud_adm_dictionary_type%5Bitems%5D%5B1%5D%5BdictActive%5D=1&cloud_adm_dictionary_type%5Bitems%5D%5B2%5D%5BdictName%5D=Negocjacje&cloud_adm_dictionary_type%5Bitems%5D%5B2%5D%5BdictValue1%5D=fa-comments-o+text-muted&cloud_adm_dictionary_type%5Bitems%5D%5B2%5D%5BisDefault%5D=1&cloud_adm_dictionary_type%5Bitems%5D%5B2%5D%5BdictActive%5D=1&cloud_adm_dictionary_type%5Bitems%5D%5B3%5D%5BdictName%5D=Wygrana&cloud_adm_dictionary_type%5Bitems%5D%5B3%5D%5BdictValue1%5D=fa-thumbs-o-up+text-primary&cloud_adm_dictionary_type%5Bitems%5D%5B3%5D%5BdictActive%5D=1&cloud_adm_dictionary_type%5Bitems%5D%5B4%5D%5BdictName%5D=Przegrana&cloud_adm_dictionary_type%5Bitems%5D%5B4%5D%5BdictValue1%5D=fa-thumbs-o-down+text-danger&cloud_adm_dictionary_type%5Bitems%5D%5B4%5D%5BdictActive%5D=1&cloud_adm_dictionary_type%5B_token%5D=3PBJr_pPjHhAIB95N7PUReP5asrXsGwCILAxZLyGTUg deal:738
cloud_adm_dictionary_type%5Bitems%5D%5B0%5D%5BdictName%5D=w%C5%82asnee&cloud_adm_dictionary_type%5Bitems%5D%5B0%5D%5BdictActive%5D=1&cloud_adm_dictionary_type%5Bitems%5D%5B1%5D%5BdictName%5D=proklienckii&cloud_adm_dictionary_type%5Bitems%5D%5B1%5D%5BdictActive%5D=1&cloud_adm_dictionary_type%5Bitems%5D%5B2%5D%5BdictName%5D=telemarketing&cloud_adm_dictionary_type%5Bitems%5D%5B2%5D%5BdictActive%5D=1&cloud_adm_dictionary_type%5Bitems%5D%5B3%5D%5BdictName%5D=mailing&cloud_adm_dictionary_type%5Bitems%5D%5B3%5D%5BdictActive%5D=1&cloud_adm_dictionary_type%5Bitems%5D%5B4%5D%5BdictName%5D=www&cloud_adm_dictionary_type%5Bitems%5D%5B4%5D%5BdictActive%5D=1&cloud_adm_dictionary_type%5Bitems%5D%5B5%5D%5BdictName%5D=partner&cloud_adm_dictionary_type%5Bitems%5D%5B5%5D%5BdictActive%5D=1&cloud_adm_dictionary_type%5Bitems%5D%5B6%5D%5BdictName%5D=nowe+zrodlo&cloud_adm_dictionary_type%5Bitems%5D%5B6%5D%5BdictActive%5D=1&cloud_adm_dictionary_type%5Bitems%5D%5B7%5D%5BdictName%5D=Aaa&cloud_adm_dictionary_type%5Bitems%5D%5B7%5D%5BdictActive%5D=1&cloud_adm_dictionary_type%5B_token%5D=3PBJr_pPjHhAIB95N7PUReP5asrXsGwCILAxZLyGTUg"

我希望从中获取一个类似于“462423dfdaak542634”这样的标签，以后需要将这些标签进行比较，以判断表单是否被更改。

- Michal Olszowski

你可以展示一些你想要把哪些字符串转换成什么样的例子？ - Abdul Jabbar

5

整整“几分钟”啊？那肯定很累人了。;) - Moob

Abdul -> 我已经添加了你想要的信息。 - Michal Olszowski

哈希标签是另一回事 -__- 你需要的是一个简单的函数，它将为你的字符串返回一个唯一的哈希值！ - Abdul Jabbar

类似的问题和答案：https://dev59.com/XWsz5IYBdhLWcg3w2Lpu - user989840

1个回答

网页内容由stack overflow 提供, 点击上面的

可以查看英文原文，
原文链接

- Abdul Jabbar · Accepted Answer

在这里，您可以使用这个简单的哈希函数：

function hashCode (str){
    var hash = 0;
    if (str.length == 0) return hash;
    for (i = 0; i < str.length; i++) {
        char = str.charCodeAt(i);
        hash = ((hash<<5)-hash)+char;
        hash = hash & hash; // Convert to 32bit integer
    }
    return hash;
}

点击此处查看演示