How do I sort an array of objects based on the ordering of another array?

Question

I have a list of objects:

[ { id: 4, name:\'alex\' }, { id: 3, name:\'jess\' }, { id: 9, name:\'...\' }, { id: 1, name:\'abc\' } ]

I have a

Answer 1

You can do it with Alasql library with simple SELECT JOIN of two arrays.

The only one thing: Alasql understands source data as array of arrays or array of objects, so you need to convert simple array to array of arrays (see Step 1)

var data1 = [ { id: 3, name:'jess' }, { id: 1, name:'abc' }, 
   { id: 9, name:'...' }, { id: 4, name:'alex' } ];
var data2 = [3, 1, 9, 4];

// Step 1: Convert [3,1,9,4] to [[3],[1],[9],[4]]
var data2a = data2.map(function(d){return [d]});

// Step 2: Get the answer
var res = alasql('SELECT data1.* FROM ? data1 JOIN ? data2 ON data1.id = data2.[0]',
    [data1,data2a]);

Try this example at jsFiddle.