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With specified country name or names, get the associated capital

Usage

capitalOf

Format

An object of class list of length 193.

Value

a list containing all countries and their corresponding capital

Examples

# view the searchable countries, return first 6
head(names(capitalOf))
#> [1] "afghanistan"         "albania"             "algeria"            
#> [4] "andorra"             "angola"              "antigua and barbuda"

#task 0: check if the capital of japan is included
#should be all in lower case
grep("japan",names(capitalOf), value = TRUE)
#> [1] "japan"

#task 1: check the capital of nigeria
capitalOf$nigeria
#> [1] "Abuja"

#task 2: check the capital of united states
capitalOf$`united states`
#> [1] "Washington, D.C"


#task 3: check capital of multiple countries
capitalOf[c("slovenia","romania","malaysia")]
#> $slovenia
#> [1] "Ljubljana"
#> 
#> $romania
#> [1] "Bucharest"
#> 
#> $malaysia
#> [1] "Kuala Lumpur"
#> 

#task 4: what if the capital is not available
capitalOf[c("randomcountry","mexico","luxembourg")]
#> $<NA>
#> NULL
#> 
#> $mexico
#> [1] "Mexico City"
#> 
#> $luxembourg
#> [1] "Luxembourg City"
#>