Question

我想循环一个数组，但是不幸的是我的for循环只执行1次。

这是我的代码：

var cmpz_disabled_dates=$.parseJSON(disabled_dates);
var date = new Date();
console.log(cmpz_disabled_dates);
for (i = 0; i < cmpz_disabled_dates.length; i++) {
    var type = cmpz_disabled_dates[i]["type"];
        if(type === "ebdida_day")   {
            var disabled_day = Number(cmpz_disabled_dates[i]["disabled"]) + 1;
            if(disabled_day == 8)   {
                disabled_day = 0;
            }
            var day = date.getDay();
            console.log(i,date,day,disabled_day);
            return [(disabled_day != day)];
    }
}

console.log的输出（cmpz_disabled_dates）;

0: {type: "ebdida_day", disabled: "7", repeat: "off", calendar: "start_end"}
1: {type: "ebdida_date_range", disabled: Array(2), repeat: "on", calendar: "start_end"}
2: {type: "ebdida_date", disabled: "2020-04-10", repeat: "off", calendar: "start_end"}
3: {type: "ebdida_date", disabled: "2020-04-13", repeat: "off", calendar: "start_end"}
4: {type: "ebdida_date_range", disabled: Array(2), repeat: "off", calendar: "start_end"}
5: {type: "ebdida_date", disabled: "2020-05-01", repeat: "off", calendar: "start_end"}
6: {type: "ebdida_date", disabled: "2020-05-21", repeat: "off", calendar: "start_end"}
7: {type: "ebdida_date", disabled: "2020-06-01", repeat: "off", calendar: "start_end"}
8: {type: "ebdida_date_range", disabled: Array(2), repeat: "off", calendar: "start_end"}
9: {type: "ebdida_date_range", disabled: Array(2), repeat: "off", calendar: "start_end"}
10: {type: "ebdida_date_range", disabled: Array(2), repeat: "off", calendar: "start_end"}
11: {type: "ebdida_date_range", disabled: Array(2), repeat: "off", calendar: "start_end"}
12: {type: "ebdida_date_range", disabled: Array(2), repeat: "off", calendar: "start_end"}
13: {type: "ebdida_day", disabled: "3", repeat: "off", calendar: "start_end"}
14: {type: "ebdida_day", disabled: "6", repeat: "off", calendar: "start_end"}
length: 15

console.log（i，date，day，disabled_day）;

0 Wed Sep 23 2020 08:48:48 GMT+0200 (Mitteleuropäische Sommerzeit) 3 0

->因此，仅输出元素0，不输出元素13和14（它们也来自“ ebdida_day”类型）

我认为，for循环正在覆盖某些内容，但我找不到该错误。谢谢！

Answer 1

您有一个return，它将中断迭代。

Answer 2

在您的for循环中删除return语句

Answer 3

在for循环块外设置return语句，否则迭代会停止

var cmpz_disabled_dates=$.parseJSON(disabled_dates);
var date = new Date();
console.log(cmpz_disabled_dates);
for (i = 0; i < cmpz_disabled_dates.length; i++) {
    var type = cmpz_disabled_dates[i]["type"];
        if(type === "ebdida_day")   {
            var disabled_day = Number(cmpz_disabled_dates[i]["disabled"]) + 1;
            if(disabled_day == 8)   {
                disabled_day = 0;
            }
            var day = date.getDay();
            console.log(i,date,day,disabled_day);        
    }
    return [(disabled_day != day)];
}

For循环仅运行1次-JavaScript

3 个答案: