Is there a faster way to create a js object yet, or is `js("{}")` and then manually populating it wi...

# javascript

[spierce7]

Is there a faster way to create a js object yet, or is js("{}") and then manually populating it with data still the most convenient?

[Chenn]

val obj: dynamic = object{}
    reducers.forEach { obj[it.key] = it.value}

This is how I do it, but I have no clue about the difference in speed..

[Kabbura]

You can use the json() function

[Kabbura]

for example

json(
        "tooltip" to json(
                "trigger" to "axis"
        ),
        "xAxis" to json(
                "data" to xAxisData
        )
)

[spierce7]

That looks super expensive. I see 6 short lived objects created from that

[spierce7]

I mean super expensive in comparison to doing it natively. Does the compiler optimize those object creations away?

[gbaldeck]

just do js("{}") and make an external interface so you can cast it and use it like a normal object

[gbaldeck]

if your worried about optimization that is probably the quickest, but i doubt if either of the other two methods mentioned will have any noticeable impact on speed.