使用HolidayAPI处理银行假期[英] using the HolidayAPI for bank holidays

问题描述

the Question: How can I use the API to return a boolean value if the date is a bank holiday?

I have done some research and found a great, and free API which contains bank holidays, however I am having trouble using it: http://holidayapi.com/

if i was to use this code:

 var year = 2016;
 var month = 3;
 var day = 25;
 var isAHoliday = false;

 $.getJSON(
          "http://holidayapi.com/v1/holidays?country=GB&year=" + year + "&month=" + month + "&day=" + day, function (data) {
                  console.log(data); //DOES NOT DISPLAY IN CONSOLE
                if (data.holidays.length > 0) {
                    // BANK HOLIDAY
                    isAHoliday = true;
                }
                else {
                    //IS NOT BANK HOLIDAY
                    //AND NOTHING NEEDS TO BE DONE
                }
          });               

i want to be able to return a true or false value depending on if this returns any data or not, however im doing something wrong as the getJSON request is not being called, please could someone correct me where i have gone wrong?

http://holidayapi.com/v1/holidays?country=GB&year=2016&month=03&day=25 returns {"status":200,"holidays":[{"name":"Good Friday","country":"GB","date":"2016-03-25"}]}

http://holidayapi.com/v1/holidays?country=GB&year=2016&month=03&day=26 returns {"status":200,"holidays":[]}

it appears this is causing an issue: "http://holidayapi.com/v1/holidays?country=GB&year=" + year + "&month=" + month + "&day=" + day; if i pass one of the 2 URL's in above i get the correct result, I am having a play now with this

https://jsfiddle.net/dcxk6ens/

推荐答案

If you simply want to return a true value if the selected date is a holiday, or false if it is not, you could use a function like this:

(Please note that jsfiddle will not execute any AJAX calls to URLs using the "http://" protocol, since it is not secure.)

function isDateAHoliday(y, m, d) {

    var jsonURL = "http://holidayapi.com/v1/holidays?country=GB&year=" + y + "&month=" + m + "&day=" + d;
    var isAHoliday = false;

    $.getJSON(jsonURL, function (data) {
        // If the date is a holiday
        if (data.holidays.length > 0) {
            // Do some things
            isAHoliday = true;
        }
        // Check values
        console.log("JSON DATA:  ", data);
        console.log("Holiday?:   " + isAHoliday);

        return isAHoliday;
    });
}

isDateAHoliday("2016", "3", "25");

If you wanted to return the name and country of the holiday as well, you could substitute isAHoliday = data.holidays[0]; inside of the if statement.

其他推荐答案

The holidays object must be called as a child of the returned data object:

Since the holidays object is an array you'll also need to use an index to access an item. Assuming there is at least one item returned, you would get the date like so:

var myDate = data.holidays[0].date;

However you should always check that there's at least one object in the array before getting the first one:

if(data.holidays.length > 0){...}

Incidentally, if all you want to do is check if there's a holiday on any particular day then this if statement is all you'll need, since an array length of more than zero means there's at least one holiday.

Edit

A full answer to your question, you could put this inside the .done() method:

var isAHoliday = false;
if(data.holidays.length > 0){
    // There's at least one holiday today!
    isAHoliday = true;
}

You don't have to declare a local variable, you'll probably use one that's declared elsewhere but that's up to you.