3e:null 3f:["$","title",null,{"children":"Highlighting with ARIA annotations | Mara Averick | Observable"}] 45:T571,

purrr map() function arguments broken into two groups: what we’re iterating over, and what we’re doing each time (adapted from Intro to purrr by Jennifer Thompson).


      
        map(.x = …,
        .f = …)
      
      
        map2(.x = …,
        .y = …,
        .f = …)
      
      
        pmap(.l = list(a1 = …, a2 = …, …), .f = …)

what we’re iterating over

what we’re doing each time

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