Transform and Instance Variable into a JavaScript array of objects

Question

How can i transform this instance variable into JavaScript array of objects

I know there is something that i have to do with

but when i try it. it just completely errors out..

This is what i am getting: (comes out with the Quotes)

@updates = [
  "{'24548_0_load_results': ['1630609','2015-04-07 13:51:03 UTC','7 minutes']}", 
  "{'24548_0_load_results': ['1630610','2015-04-07 13:51:03 UTC','7 minutes']}"
]

Created the above with this:

  @updates = []
  records.each do |r|
    updates << "{ '" + t.search_table_id.to_s + "': " + Search.load_post_result(r, s).to_s + " }"
  end

This is how i need it:

var obj1 = {
    "loads": [
        {'24547_1428357240_load_results' : ['1630607','2015-04-06 18:35:46 UTC','8 minutes']},
        {'24547_1428357240_load_results' : ['1630606','2015-04-06 18:35:47 UTC','8 minutes']}
    ]
};

This is the script that i am tring to run this array of objects thru:

$.each(obj1["loads"], function(k, v){
    $.each(v, function(key, value) {
        alert(key + ": " + value);
    })
});

edit: This is what i have now

var obj1 = {
    "loads": []
};

for (string in <%= @updates1 %>){
    obj1["loads"].push(JSON.parse(string.replace(/'/g,'\"')));
}

$.each(obj1["loads"], function(k, v){
    $.each(v, function(key, value) {
        alert(key + ": " + value);
    })
});

And looks like this in the response:

var obj1 = {
    "loads": []
};

for (string in [&quot;{ '24549_1428420484_load_results': ['1630610','2015-04-07 14:44:37 UTC','44 minutes','Springfield, MO','Dallas, TX','04/07','04/07','Full','Flatbed or Van or Reefer','','53','0.00'] }&quot;, &quot;{ '24549_1428420484_load_results': ['1630609','2015-04-07 13:51:03 UTC','about 2 hours','Springfield, MO','Dallas, TX','04/10','04/11','Full','Flatbed or Van or Reefer','','53','0.00'] }&quot;]){
    obj1["loads"].push(JSON.parse(string.replace(/'/g,'\"')));
}

$.each(obj1["loads"], function(k, v){
    $.each(v, function(key, value) {
        alert(key + ": " + value);
    })
})

;

I was going to suggest calling records.as_json, but Gon is probably a better answer. — MrTheWalrus
– MrTheWalrus, Commented Apr 7, 2015 at 14:31

Community · Accepted Answer · 2017-05-23 12:22:11Z

1

You could do it in javascript like this:

    JSON.parse("YourString".replace(/'/g,'\"'))

Here's a fiddle to demonstrate.

https://jsfiddle.net/ab19ha1o/

You need to replace the single quotes to properly parse JSON, so that's a quick and dirty way to do it :)

Edit: Here's the SO Thread on JSON Parse: jQuery.parseJSON single quote vs double quote

And you would just need to iterate over each string to get the object.

Edit: The full transfer would look something like this:

    for (string in updates){
      obj1["loads"].push(JSON.parse(string.replace(/'/g,'\"')));
    }

edited May 23, 2017 at 12:22

CommunityBot

11 silver badge

answered Apr 7, 2015 at 14:39

WakeskaterX

1,4269 silver badges22 bronze badges

Sign up to request clarification or add additional context in comments.

7 Comments

Big Al Ruby Newbie Over a year ago

I am still having trouble incorportating this i keep getting the unexpected & error... that is probably because it is converting the double quotes to HTML.

WakeskaterX Over a year ago

Oh yeah if it's HTML encoding it you'd have to decode it first as well.

Big Al Ruby Newbie Over a year ago

so would string = <%= escape_javascript(@updates) %>; BY the way this is in a js.erb file

WakeskaterX Over a year ago

Ah, I'd have to see it in the client on what it outputs, I'm not as familiar with ruby. Can you link what that is actually outputting to the client if you do that? It's likely you want to store that in an array and then iterate through each string.

Big Al Ruby Newbie Over a year ago

i added the new info... still getting the & error probably here "

|

Collectives™ on Stack Overflow

Transform and Instance Variable into a JavaScript array of objects

1 Answer 1

7 Comments

Your Answer

Linked

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

7 Comments

Your Answer

Sign up or log in

Post as a guest

Linked

Related