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Lodash / Underscore sort object keys. Like _.sortBy(), but on keys instead of values, returning an object, not an array. Defaults to alphanumeric sort.
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| _.mixin({ | |
| 'sortKeysBy': function (obj, comparator) { | |
| var keys = _.sortBy(_.keys(obj), function (key) { | |
| return comparator(obj[key], key); | |
| }); | |
| return _.object(keys, _.map(keys, function (key) { | |
| return obj[key]; | |
| })); | |
| } | |
| }); |
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