Date.Format for javascript date

Question

I have an array of

struct {
    Date         time.Time
    PostedSample int
}

loaded from the appengine datastore which I want to output in a html/template for the Google Visualization Time Line. First I tried formatting the Date directly in the template with {{.Date.Format "new Date(2006,1,2,15,4,5)"}} but html/template escapes this so it appears as a quoted string in the html source. I then tried formatting the date into a []struct{Date template.JS; Value template.JS} with the expression template.JS(m.Date.Format("new Date(2006,1,2,15,4,5)")) which almost works except the month is off by one, javascript wants January as 0. I could have the template generate a json of date parameters and write javascript turn that into Date objects or have go code which adjusts the template output. Please share a more elegant solution. Thank you.

You might find this useful if you're parsing a lot of dates in JavaScript momentjs.com — Benjamin Gruenbaum
– Benjamin Gruenbaum, Commented Jun 2, 2013 at 3:07
You may be able to add the date formatting to a function in the template funcmap. Have a look at golang.org/pkg/html/template/#Template.Funcs . Example at play.golang.org/p/pu66DfQIbJ . — Intermernet
– Intermernet, Commented Jun 2, 2013 at 3:54

ioboi · Accepted Answer · 2013-06-05 14:25:50Z

1

You don't need to add a format function to the templates.

You can use your struct like so:

{{.Date.Format "Mon 2 Jan 2006"}}

The solution might be something like this:

var date = new Date(parseInt({{.Date.Nanosecond }} /1000));

edited Jun 5, 2013 at 14:25

answered Jun 5, 2013 at 14:15

ioboi

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