JSON to Object - JavaScript

Question

I am trying to take a JSON list that is formatted as such: (real list has over 2500 entries).

 [
 ['fb.com', 'http://facebook.com/']
 ['ggle.com', 'http://google.com/']
 ]

The JSON list represents: ['request url', 'destination url']. It is for a redirect audit tool built on node.js.

The goal is to put those JSON value pairs in a javascript object with a key value array pair as such:

 var importedUrls = {
 requestUrl : [
 'fb.com',
 'ggle.com'
 ],
 destinationUrl : [
 'https://www.facebook.com/',
 'http://www.google.com/' 
 ]
 }

Due to the sheer amount of redirects, I do prefer a nonblocking solution if possible.

• Mike Cluck: Technically, that isn't valid JSON because JSON requires double-quotes, not single quotes. But those are valid Javascript arrays. As for your question: what have you tried?
• Quentin: stackoverflow.com/questions/10773564/… is probably worth reading
• nnnnnn: Besides the single versus double quote issue, you need commas in between each of the child arrays.

Answer 1

You first need to create your object:

var importedUrls = {
 requestUrl: [],
 destinationUrl: []
}

Now, let's say you have your data in an array called importedData for lack of a better name. You can then iterate that array and push each value to its proper new array:

importedData.forEach(function(urls){
 importedUrls.requestUrl.push(urls[0]);
 importedUrls.destinationUrl.push(urls[1]);
});

This will format your object as you want it to be formatted, I hope.

I will propose it to you that you take another approach. Why not have an array of importedUrls, each one with its correspondent keys?

You could have something like:

importedUrls = [
 {
 requestUrl: 'req',
 destinationUrl: 'dest'
 },
 {
 requestUrl: 'req2',
 destinationUrl: 'dest2'
 },
]

I'm sure you can figure out how to tweak the code I showed to fit this format if you want to. What you gain with this is a very clear separation of your urls and it makes the iterations a lot more intuitive.

• Mike Cluck: forEach doesn't set this to the current element. You'd need to accept a parameter and use that parameter instead.
• Jamesc892: This answered my question - and helped me better understand object arrays. I did end up implementing the arrays with each object having corresponding keys - it was a better method of combing through everything. I appreciate the help!