how to sort an array of objects using a related property from objects in second array

Question

There are many questions regarding sorting with JavaScript but I didn\'t find anything that addresses this case so I don\'t believe this is a duplicate.

I\'m getting dat

Answer 1

Here's my solution. If you know that both arrays will match in length and location of id's, then this is a concise solution:

_.chain(items)
 .merge(order)
 .sortBy('sortindex')
 .map(_.partialRight(_.omit, 'sortindex'))
 .value()

Otherwise, if they aren't guaranteed to be sorted, then the items can be resolved with a map/find/merge.

_.chain(items)
 .map(function(item) { 
    return _.merge(item, _.find(order, {'id': item.id})); 
 })
 .sortBy('sortindex')
 .map(_.partialRight(_.omit, 'sortindex'))
 .value()