29 lines
781 B
JavaScript
29 lines
781 B
JavaScript
var safeCb = require('./safeCb');
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var pluck = require('./pluck');
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var map = require('./map');
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var isUndef = require('./isUndef');
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exports = function(obj, iteratee, ctx) {
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iteratee = safeCb(iteratee, ctx);
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var idx = 0;
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return pluck(
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map(obj, function(val, key) {
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return {
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val: val,
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idx: idx++,
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criteria: iteratee(val, key, obj)
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};
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}).sort(function(left, right) {
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var a = left.criteria;
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var b = right.criteria;
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if (a !== b) {
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if (a > b || isUndef(a)) return 1;
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if (a < b || isUndef(b)) return -1;
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}
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return left.idx - right.idx;
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}),
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'val'
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);
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};
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module.exports = exports;
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