Question

我想从循环中获取实际的月份。当我在开发人员工具中执行此操作并且month[i] == 4时，它不会将actualMonth分配给checkMonth

我是否必须将getMonth分配给month[]，然后尝试查询该值？

var showCurrentMonth = function() {
    var getMonth = new Date().getMonth();

    var month = ["january", "february", "march", "april", "may", "june", "july", "august", "september", "october", "november", "december"];

    var actualMonth = "";
    for (var i = 0; i < month.length; i++) {
        var checkMonth = month[i];
        console.log(month[i]);
        if (getMonth == month[i]) {
            actualMonth = checkMonth;
        }
    }
    console.log(actualMonth);
}
window.addEventListener('DOMContentLoaded', showCurrentMonth, false);

Answer 1

您的问题是您正在比较整数和字符串：

var getMonth = new Date().getMonth(); // This return number from 0 to 11

代码Date().getMonth()返回一个整数，您的month列表中包含字符串

您的代码应为：

var showCurrentMonth = function() {
    var getMonth = new Date().getMonth();

    var month = ["january", "february", "march", "april", "may", "june", "july", "august", "september", "october", "november", "december"];

    var actualMonth = month[getMonth];
    console.log(actualMonth);
}
window.addEventListener('DOMContentLoaded', showCurrentMonth, false);

要获得实际月份，您只需要使用 getMonth 作为索引访问月份列表

Answer 2

太简单了？

var showCurrentMonth = function() {
    var getMonth = new Date().getMonth();

    var month = ["january", "february", "march", "april", "may", "june", "july", "august", "september", "october", "november", "december"];

    var actualMonth = month[getMonth];
    
    console.log(actualMonth);
}
window.addEventListener('DOMContentLoaded', showCurrentMonth, false);

Answer 3

将您的if更改为.a

这样做：

if (month[getMonth] == month[i]) {

Answer 4

slightly Modification required

package com.projectShaun.service;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import com.projectShaun.dao.AccountDao;
import com.projectShaun.model.Account;

@Service("accountService")
@Transactional
public class AccountServiceImpl implements AccountService {

    @Autowired
    private AccountDao accountDao;

    public void persistAccount(Account account) {
        accountDao.persistAccount(account);
    }

}

在for循环中指定值

4 个答案: