Add AnyFrame.toHTML overload for browsers

Author: koperagen

core/src/main/kotlin/org/jetbrains/kotlinx/dataframe/io/html.kt

@@ -181,8 +181,18 @@ internal fun initHtml(
         body = "",
     )
 
+@Deprecated("Clarify difference with .toHTML()", ReplaceWith("this.toStandaloneHTML()", "org.jetbrains.kotlinx.dataframe.io.toStandaloneHTML"))
 public fun <T> DataFrame<T>.html(): String = toHTML(extraHtml = initHtml()).toString()
 
+/**
+ * @return HTML String that be saved as an *.html file and displayed in the browser
+ */
+public fun <T> DataFrame<T>.toStandaloneHTML(
+    configuration: DisplayConfiguration = DisplayConfiguration.DEFAULT,
+    cellRenderer: CellRenderer = org.jetbrains.kotlinx.dataframe.jupyter.DefaultCellRenderer,
+    getFooter: (DataFrame<T>) -> String = { "DataFrame [${it.size}]" },
+): String = toHTML(configuration, extraHtml = initHtml(), cellRenderer, getFooter).toString()
+
 public fun <T> DataFrame<T>.toHTML(
     configuration: DisplayConfiguration = DisplayConfiguration.DEFAULT,
     extraHtml: HtmlData? = null,

core/src/test/kotlin/org/jetbrains/kotlinx/dataframe/testSets/person/HtmlRenderingTests.kt

@@ -7,9 +7,9 @@ import org.jetbrains.kotlinx.dataframe.api.dataFrameOf
 import org.jetbrains.kotlinx.dataframe.api.group
 import org.jetbrains.kotlinx.dataframe.api.into
 import org.jetbrains.kotlinx.dataframe.api.parse
-import org.jetbrains.kotlinx.dataframe.io.html
 import org.jetbrains.kotlinx.dataframe.io.initHtml
 import org.jetbrains.kotlinx.dataframe.io.toHTML
+import org.jetbrains.kotlinx.dataframe.io.toStandaloneHTML
 import org.jetbrains.kotlinx.jupyter.findNthSubstring
 import org.junit.Ignore
 import org.junit.Test
@@ -36,7 +36,7 @@ class HtmlRenderingTests : BaseTest() {
     fun `render url`() {
         val address = "http://www.google.com"
         val df = dataFrameOf("url")(address).parse()
-        val html = df.html()
+        val html = df.toStandaloneHTML()
         html shouldContain "href"
         html.findNthSubstring(address, 2) shouldNotBe -1
     }