geraldcroes

<?php
if ($activityReport[$employeeId][$month] > $salesGoal) {
   //some code here
}

geraldcroes

<?php
if ($data[$i][$j] > $x) {
   //some code here
}

geraldcroes

"filename.json".createFileParser()

geraldcroes

fun String.createFileParser() =
            when (this.substringAfterLast('.')) {
                "xml" -> XmlFileParser()
                "json" -> JsonFileParser()
                else -> throw Exception("I don't know how to deal with $this.")
            }

geraldcroes

infix fun FileParser.Companion.fromFile(filename: String) = 
        this.createFromFileName(filename)

geraldcroes

val parser = FileParser fromFile "filename.json"

geraldcroes

fun FileParser.Companion.fromFile(filename: String) = 
        this.createFromFileName(filename)

geraldcroes

FileParser.createFromFile("filename.json")

geraldcroes

interface FileParser {
    companion object {
       	fun createFromFileName(fileName: String) =
            when (fileName.substringAfterLast('.')) {
                "xml" -> XmlFileParser()
                "json" -> JsonFileParser()
                else -> throw Exception("I don't know how to deal with $fileName.")
            }
    }
}

geraldcroes

//Works…
ObjectFileParserFactory.createFromFileName("filename.foo")
 
//...and this still works
val fileParser = ObjectFileParserFactory
fileParser.createFromFileName("filename.json")