indexBy_.indexBy(list, iteratee, [context])
Given a list, and an iteratee function that returns a key for each element in the list (or a property name), returns an object with an index of each item. Just like groupBy, but for when you know your keys are unique.
1 2 3 4 5 6 7 | var stooges = [{name: 'moe', age: 40}, {name: 'larry', age: 50}, {name: 'curly', age: 60}];_.indexBy(stooges, 'age');=> { "40": {name: 'moe', age: 40}, "50": {name: 'larry', age: 50}, "60": {name: 'curly', age: 60}} |
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