Question

I’m populating an array nodevalues with objects. It looks like this:

nodevalues.push({id: this.id, left: left, right: right});

This line is inside a $.each() iterator which iterates over some li nodes and also calculates the left and right values.

So I have an array with several objects who all look the same:

Is it possible to serialize this array to an url string for database storage using jQuery.post()?

Calling $(nodevalues).serialize() returns nothing and $.param(nodevalues) returns undefined=undefined&undefined=undefined&undefined=undefined&undefined=undefined&undefined=undefined&undefined=undefined&undefined=undefined&undefined=undefined&undefined=undefined&undefined=undefined…

Answer 1

jQuery.param() might do what you want

var dataString = jQuery.param(nodevalues);

It seems that param only works on objects, not arrays.

If you wrap your array in an object it works fine:

var nodevalues = [];

nodevalues.push({id: "node1", left: 1, right: 20});
nodevalues.push({id: "node2", left: 2, right: 10});
nodevalues.push({id: "node3", left: 3, right: 30});
nodevalues.push({id: "node4", left: 4, right: 40});

var data = { data: nodevalues };

alert($.param(data));

http://jsfiddle.net/4NELt/