JavaScript new Keyword in Go

JavaScript

To print the date info in JavaScript, you can do the following with new keyword:

var d = new Date();
console.log(d);

You can try the code online in w3schools. [1]

GopherJS

The above code in Go/GopherJS is as follows:

import (
      "github.com/gopherjs/gopherjs/js"
)

d := js.Global.Get("Date").New()
println(d)

You can try the code online:

Run Code on GopherJS Playground

GopherJS + godom

To make your code more readable, we can prettify the above code with godom:

import (
      . "github.com/siongui/godom"
)

d := Window.Get("Date").New()
println(d)

For more exaples for JavaScript new keyword in Go, see [2], [3], [4].

Chain Dots

From the comment of @pbrown12303, if you have to new the following chain dots in JavaScript:

var x = new joint.dia.Graph;

The following code in Go/GopherJS will not work:

x := js.Global.Get("joint.dia.Graph").New()

The correct syntax in Go/GopherJS is:

x := js.Global.Get("joint").Get("dia").Get("Graph").New()

References: