Keywords & Syntax Comparison

(D) this keyword

JS

Inside an object method, this refers to the object (with some exceptions).

Go

In Go, the closest analogy would be receivers inside method functions. You may use this as a receiver:

type Bar struct {
    foo string
}

func (this *Bar) Foo() string {
    return this.foo
}

It is more idiomatic to use short variables as receivers. In the example above b would have been a better fit over this.

(D) new keyword

JS

new Foo() instantiates an object from Foo, a constructor function or a class.

Go

new(T) allocates zeroed storage for a new item of type T and returns a pointer, *T. This is different than Javascript and most other languages where new will initialize the object, while in Golang it only zeros it.

It is worthy to mention that it is idiomatic to name methods with a "New" prefix to denote it returns a pointer to the type following in the method name. e.g:

timer := time.NewTimer(d) // timer is a *time.Timer

(D) bind / method values

JS

var f = bar.foo.bind(bar2); // when calling f(), "this" will refer to bar2

Go

f := bar.foo // f(), is same as bar.foo()

(S) setTimeout / timer

JS

setTimeout(somefunction, 3*1000)

Go

time.AfterFunc(3*time.Second, somefunction)

(D) setInterval / ticker

JS

setInterval(somefunction, 3*1000)

Go

ticker := time.NewTicker(3 * time.Second)
go func() {
    for t := range ticker.C {
        somefunction()
    }
}()

(D) String literals

JS

Strings are initialized with single quotes ('hello') or double quotes ("hello"), yet most coding styles prefer the single quotes variation. Raw string literals use backticks (`hello` ).

Go

Strings are initialized with double quotes ("hello") or raw string literals with backticks (`hello` )

(S) Comments

Both languages use the same /* block comments */ and // line comments.