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ivan-nikitovic/map.js

Last active November 2, 2017 20:35
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Redux - Map array with conditional modification
Raw
map.js
const map = array => ({
when: condition => ({
then: modification => array.map(
(item, index, collection) => condition(item, index, collection) ? modification(item, index, collection) : item,
),
}),
});
map([1, 2, 3]).when(number => number > 1).then(number => number * 2) // [1, 4, 6]
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