Converting an object/array into JSON?

Question

I have an array (it might be an object too, I don't know what I'm talking about):

grid.columns[0].text
grid.columns[1].text
grid.columns[2].text

And so on. I want to convert it into JSON. I've tried to use JSON.stringify(grid.columns.text) but it didn't work: it gives null.

What do you want to convert to JSON? The grid object or grid.columns array? — James Allardice
– James Allardice, Commented Jun 19, 2012 at 8:18
You have an array (grid.columns) whose elements have .text properties, while you are trying to stringify a .text property on the array itself. It is not clear what you are trying to do, so I cannot suggest how to fix your code. — lanzz
– lanzz, Commented Jun 19, 2012 at 8:19
@JamesAllardice, grid column header names. the grid object is very big. the grid.columns array. — ilhan
– ilhan, Commented Jun 19, 2012 at 8:19
As James Allardice said, did you try to convert grid.columns? That is: JSON.stringify(grid.columns); — Angel
– Angel, Commented Jun 19, 2012 at 8:23
@Angel, as I look through console.log(grid.columns) I see that the grid.columns is very very huge. — ilhan
– ilhan, Commented Jun 19, 2012 at 8:28

Gabriele Petrioli · Accepted Answer · 2012-06-19 08:30:55Z

3

Try with

JSON.stringify(grid.columns.map(function(item) {
    return item.text;
}));
// ["value of text 0", "value of text 1",...]

Alternatively

JSON.stringify(grid.columns.map(function(item) {
    return {text:item.text};
}));
// [{"text":"value of text 0"},{"text":"value of text 1"},..]

answered Jun 19, 2012 at 8:25

Gabriele Petrioli

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Comments

Ben Rowe · Accepted Answer · 2012-06-19 08:26:35Z

1

Using JSON.stringify(grid.columns.text) isn't going to work based off your provided structure:

Try the following instead:

JSON.stringify(grid.columns);

This should produce something like:

[
  {"text": "value"},
  {"text": "value2"},
  {"text": "value3"},
  ...
]

answered Jun 19, 2012 at 8:26

Ben Rowe

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