• Status: Solved
  • Priority: Medium
  • Security: Public
  • Views: 7597
  • Last Modified:

how to add/modify Json data(file) using javascript/jquery/ajax?

Hi,

Is there a way to modify the json data using javascript/jquery/ajax?

Q1)
I need to add additional properties to the json data.

ex)
[
{ 'text': 'john doe', 'age':'29', 'id':'123', 'uri': 'xxxxx'},
{ 'text': 'jane doe', 'age':'22', 'id':'122', 'uri': 'xxxxx'},
{ 'text': 'joe doe', 'age':'12', 'id':'121', 'uri': 'xxxxx'}
]

Open in new window


I need to add 'parent':'xxxx'

I get the json data from the web service call.

can you show me an example or tutorial how I can do this please?
I must be looking at wrong place and can't find any examples.
Thanks.
0
dkim18
Asked:
dkim18
  • 2
1 Solution
 
Chris StanyonCommented:
If you just wan't to add the value to one of the records, then something like this:

var json = [
{ 'text': 'john doe', 'age':'29', 'id':'123', 'uri': 'xxxxx'},
{ 'text': 'jane doe', 'age':'22', 'id':'122', 'uri': 'xxxxx'},
{ 'text': 'joe doe', 'age':'12', 'id':'121', 'uri': 'xxxxx'}
]

json[1].parent = 'xxxx';

Open in new window

If you want to loop through all the records, then like this:

$(json).each(function(i,elem) {
	elem.parent = 'xxxx';
});

Open in new window

0
 
dkim18Author Commented:
$(json).each(function(i,elem) {

are i and elem the builtin(??) property name or did you make them up?

also is json variable a json object or array?
I get confused on that.
Thanks.
0
 
Chris StanyonCommented:
The each() method takes a function with 2 arguments - the index of each element and the element itself. The index is the zero-based number of the element: 0 - first element, 1 - second element etc.).

I just used i and elem, but you can call them whatever you like, as long as you stick to it inside your each function. Sometimes it makes for more readable code if you use a descriptive variable:

$(json).each(function(index, person) {
    person.parent = 'xxxx';
}

Open in new window

In my code example, I assigned your JSON data to a variable called json as you didn't show us how you were getting that. In your case you have an array of objects...which you can access either by index, or by looping through.

Hope that makes sense :)
0
Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.

Join & Write a Comment

Featured Post

Upgrade your Question Security!

Your question, your audience. Choose who sees your identity—and your question—with question security.

  • 2
Tackle projects and never again get stuck behind a technical roadblock.
Join Now