使用moment.js转换XML解析的时间和日期的时区

Question

I'm parsing a XML file with Javascript and I would like to convert a date to my local time zone using moment.js but I'm stuck. The basic parsing consists of getting the date:

document.write(x[i].getElementsByTagName("Date")[0].childNodes[0].nodeValue);

Which generates something like 31/12/2016 23:00 . With moment.js it's possible to format the date like this:

var utcDate = moment.utc('31/12/2016 23:00', 'DD/MM/YYYY HH:mm');
var localDate = utcDate.local();
document.write(localDate);

Which writes 01/01/2017 01:00 in my current time zone. But I can't figure out how to use the method above with the parsing. Tried modifying the variable but only getting "Invalid date" as a result.

var utcDate = moment.utc('x[i].getElementsByTagName("Date")[0].childNodes[0].nodeValue', 'DD/MM/YYYY HH:mm');
var localDate = utcDate.local();
document.write (localDate);

Does anyone have any tips? Might be other solutions than using moment.js but it seemed like the best and most flexible option.

Answer 1

You've put your XML traversal inside a string. That traversal won't happen if it's not actual javascript. Additionally, moment.js will try to parse that literal string as a date, NOT the value from that traversal.

'x[i].getElementsByTagName("Date")[0].childNodes[0].nodeValue'

You need to unquote your traversal to get its value, then feed that to moment.js.

var utcDate = moment.utc(x[i].getElementsByTagName("Date")[0].childNodes[0].nodeValue, 'DD/MM/YYYY HH:mm');