javascript获取动态id

function uuid(){
    return 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, function(c) {
         var r = Math.random()*16|0,

              v = c == 'x' ? r : ( r&0x3|0x8 );
    return v.toString(16);
    });
}

// 一般情况下是这种写法

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


／／vue里的写法