无论如何在openoffice电子表格中将文本置于单元格中心?按中心,我的意思是文本的左右,顶部和底部之间的相同空白区域。
提前致谢!
答案 0 :(得分:2)
使用侧边栏,只需点击两下即可完成,下方用红色圈出。
如果您没有看到侧边栏,则可以通过单击绿色圆圈所示的点来展开侧边栏。确保选中function findUser() {
return User.findOne({ "username": req.body.username })
.then(function(user) {
if (user) {
// user exists, you can throw an error if you want
throw new Error('User already exists!');
}
// user doesn't exist, all is good in your case
}, function(err) {
// handle mongoose errors here if needed
// rethrow an error so the caller knows about it
throw new Error('Some Mongoose error happened!');
// or throw err; if you want the caller to know exactly what happened
});
}
findUser().then(function() {
// user doesn't exist, do your stuff
}).catch(function(err) {
// here, you'll have Mongoose errors or 'User already exists!' error
console.log(err.message);
});
。