Higher-order functions for dealing with lists
These functions were inspired by underscore.js.
pluck(key) pluck_apply(key, xss) pick(keys) pick_apply(keys, xss)
key |
the name of a value in a list |
xss |
a list of lists |
keys |
a character vector of names in a list |
pluck: Pluck a named value from a list
pick: Simplify a list by picking out whitelisted names
The simple versions of pluck and pick are curried functions,
meaning that they return a function which can be applied to a list. See the
syntax in the usage section.
pluck returns an unnamed value and pluck_apply returns
a list of unnamed values. pick returns a simplified version of the
original list. pick_apply returns a list of simplified lists.
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