在javascript中从数组中删除对象

Question

我正在尝试使用art_id从购物车中删除一个对象,但是当我收到此错误时SyntaxError: Delete of an unqualified identifier in strict mode.为什么会发生这种情况,如何修改我的代码来解决此错误

 function remove_from_cart(req, res, next) {
        console.log(req.session);
        var art_id = req.params._id;

        var art_to_remove = _.findWhere(req.session.cart, {
            art_id: art_id
        });

        console.log(art_to_remove);
        delete art_to_remove;
        console.log(req.session);
        res.send('deleted')
    }

Answer 1

由于您似乎正在使用underscore,您可以使用_.reject():

req.session.cart = _.reject(req.session.cart, { art_id: art_id });