d3.js时间格式％b％e返回null

Question

I have read https://github.com/mbostock/d3/wiki/Time-Formatting and related stackoverflow posts, but cannot find answer.

I already have date in this format.

Mon Jan 26 2015 00:00:00 GMT-0800 (PST)

But I want to convert them from "%Y-%m-%d" to "%b %e". I directly used

var parse = d3.time.format("%b %e").parse and it returns null. I found an old post says because input is not in correct format.

I also tried "2015-01-26" as input, still return null. So how can I get format as "%b %e" from Mon Jan 26 2015 00:00:00 GMT-0800 (PST)?

Answer 1

You have Mon Jan 26 2015 00:00:00 GMT-0800 (PST) as a string and want to convert it to a date object?

var someDate = new Date("Mon Jan 26 2015 00:00:00 GMT-0800 (PST)");

Or you have Mon Jan 26 2015 00:00:00 GMT-0800 (PST) as a date object and want to format as a string like %b %e?

var format = d3.time.format("%b %e");
format(someDate);

Or you have Mon Jan 26 2015 00:00:00 GMT-0800 (PST) as a string and you want it as a string like %b %e?

var someDate = new Date("Mon Jan 26 2015 00:00:00 GMT-0800 (PST)");
var format = d3.time.format("%b %e");
format(someDate);