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'use strict';
import isArrayLike from 'lodash-es/isArrayLike';
import keys from 'lodash-es/keys';
export default function keyIterator(coll) {
var i = -1;
var len;
if (isArrayLike(coll)) {
len = coll.length;
return function next() {
i++;
return i < len ? i : null;
};
} else {
var okeys = keys(coll);
len = okeys.length;
return function next() {
i++;
return i < len ? okeys[i] : null;
};
}
}
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