How to iterate over a list in R

I have a list to say:

dataSet$mixed_bag <- list("Hello", c("USA", "Red", "100"), c("India", "Blue", "76"))

      

        
        
        
      

    

I want to loop over this list and create new variables based on the contents of the list. The pseudocode will look something like this.

foreach row in dataSet$mixed_bag {
    if (sapply(dataSet$mixed_bag, length) == 3) {
        dataSet$country <- dataSet$mixed_bag[[row]][1];
        dataSet$color <- dataSet$mixed_bag[[row]][2];
        dataSet$score <- dataSet$mixed_bag[[row]][3];
    } else if (sapply(dataSet$mixed_bag, length) == 2) {
       #Do something else
    } else {
       # Do nothing
    }
}

      

        
        
        
      

    

Please suggest how I would do this in R