初版demo

var str1 = '<B>客户姓名</B>：&nbsp;王*&nbsp;&nbsp;&nbsp; <B>品牌</B>：&nbsp;无&nbsp;&nbsp;&nbsp; <B>入网时间</B>：&nbsp;20090317&nbsp;&nbsp;&nbsp; <B>状态</B>：&nbsp;正常&nbsp;&nbsp;&nbsp; <B>服务计划</B>：移动10G套餐-68元B套餐<br><span style="color:red;"><b>是否4G卡</b>：&nbsp;是</span>';
str1 = str1.replace(/<.*?>|<\/.*?>|&nbsp;|[：*]/g, ',').split(',');
function trimSpace(array) {
    for (var i = 0; i < array.length; i++) {
        if (array[i] == "" || array[i] == " " || array[i] == null || typeof (array[i]) == "undefined") {
            array.splice(i, 1);
            i = i - 1;
        }
    }
    return array;
}
var sd = new trimSpace(str1);
var sb = str1.filter(function (s) {
    return s && s.trim(); // 注：IE9(不包含IE9)以下的版本没有trim()方法
});
console.log(sd);
console.log(sb);