Can I pass a multiline string to js()?

# kvision

[Jörg Rade]

Can I pass a multiline string to js()?

[Jörg Rade]

Currently I have

private fun toolTipCallback(): TooltipCallback {
    return TooltipCallback(
        footer = js(
            "function(context) {"
                    + "var ctx = context[0];"
                    + "var chart = ctx.chart;"
                    + "var ccc = chart.config._config;"
                    + "var data = ccc.data;"
                    + "var i = ctx.dataIndex;"
                    + "return data.labels[i];"
                    + "}"
        )
    )
}

Which is a bit ugly.

[Jörg Rade]

I think I've tried already with val str ="""
[...]
"""

[Jörg Rade]

Which didn't work.

[Jörg Rade]

... const val in an companion object works.

[Tomas Kormanak]

Tripple quote works:

js("""
your code...

""")

But be aware the string must be literal, because it is processed during compilation not in runtime
e.g

js("""
your code...
""".trimIndent())

or

js("""
    $somevariable
""")

will not work

[Jörg Rade]

Thanks Tomas, I've come to a similar solution by now:

fun tooltipCallbackFooterJsFunction(): dynamic {
    return js(
        """function(context) {
                    var ctx = context[0];
                    var chart = ctx.chart;
                    var ccc = chart.config._config;
                    var data = ccc.data;
                    var i = ctx.dataIndex;
                    return data.labels[i];
        }"""
    )
}

within companion object.