angularjs:屏蔽SSN的前五个数字 [英] angularjs: mask the first five digits of SSN

问题描述

我正在尝试使用看起来像这样的过滤器屏蔽SSN的前5位数字 XXX-XX-1234

I'm trying to mask the first 5 digits of SSN using a filter which should look something like this XXX-XX-1234

到目前为止，我想出了什么:

What I came up with so far:

// <td>{{SocialSecurityNumber | ssn}}

angular.module('ng').filter('ssn', function () {
    return function (ssn) {
        if (!ssn) {
            return '';
        }

        var value = ssn.toString().trim().replace(/^\+/, '');

        if (value.match(/[^0-9]/)) {
            return ssn;
        }

        return (ssn.slice(0, 3).replaceWith('*') + '-' + ssn.slice(4, 5).replaceWith('*') + '-' + ssn.slice(4)).trim();
    };
});

推荐答案

字符串在JavaScript中没有 .replaceWith 函数.不过，您可以使用 .replace .

Strings have no .replaceWith function in JavaScript. You can use .replace, though.

我不确定 value.match(/[0-9]/)应该做什么.看来您可以删除它.如果该值具有偶数位，则该值将返回 true .也许您的意思是/[^ 0-9]/

I'm not sure what value.match(/[0-9]/) is supposed to do either. It seems like you can just remove it. This will return true if the value has even one digit, which it should anyway. Perhaps you mean /[^0-9]/

return "XXX-XX-" + ssn.slice(5);

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