What are some advanced methods in Ruby?
Ruby has several advanced methods like inject
, map
, and select
. Would you like to explore any specific method?
Can you explain how the inject
method works?
Sure! The inject
method is used to accumulate a value across an enumerable. It takes an initial value and a block, applying the block to each element.
Can you give me an example of using inject
?
Absolutely! For example, you can sum an array of numbers like this: array.inject(0) { |sum, number| sum + number }
.
What about the map
method? How is it different?
The map
method transforms each element of an array based on the block you provide, returning a new array with the results.
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