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02-10-2019 - |
题
def mainCaller() = {
val name = "xyz"
someList.foreach { u:Map => foo(name, u) }
}
def foo(name:String)(map:Map): Unit = {
//match case....
//recursive call to foo in each case where name remains same, but map changes
}
我如何将foo作为部分应用功能写,我不必在每个递归电话中传递名称,只需呼叫 foo(map1)
?
解决方案
两个选项:
def foo(name:String)(map:Map): Unit = {
val bar = foo(name)_
//match case...
// case 1:
bar(x)
// case 2:
bar(y)
}
或者:
def foo(name:String): Map => Unit = {
def bar(map: Map): Unit = {
//match case...
// case 1:
bar(x)
// case 2:
bar(y)
}
bar
}
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