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how to add new value in R list

mylist <- list( "Sunday", "Monday" )
mylist<- append(myList, "Tuesday")
print(mylist)

[[1]]
[1] "Sunday"
 
[[2]]
[1] "Monday"
 
[[3]]
[1] "Tuesday"

////////////////////////////////////////////////////////////////////////////
mylist <- list( "Sunday", "Monday", "Wednesday" )
mylist<- append(myList, "Tuesday", after=2)  // indexing the position to append element
print(mylist)

[[1]]
[1] "Sunday"
 
[[2]]
[1] "Monday"
 
[[3]]
[1] "Tuesday"
 
[[4]]
[1] "Wednesday"
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