javascript - How to make a simple json array with push - Stack Overflow

admin管理员组

文章数量:1419666

If I have a blog post and I push ments with the line:

blogpostments.push({ username: "fred", ment: "Great"});

the ments section of JSON looks like this:

"ments":[{"0":{"username":"jim","ment":"Good",},"1":{"username":"fred","ment":"great"}}]

Ideally I'd like to see the JSON without the numerical additions ("0","1", etc) and flatter. Something like:

"ments":[{"username":"jim","ment":"Good"},{"username":"fred","ment":"great"}]

What do I need to change to get this?

If I have a blog post and I push ments with the line:

blogpost.ments.push({ username: "fred", ment: "Great"});

the ments section of JSON looks like this:

"ments":[{"0":{"username":"jim","ment":"Good",},"1":{"username":"fred","ment":"great"}}]

Ideally I'd like to see the JSON without the numerical additions ("0","1", etc) and flatter. Something like:

"ments":[{"username":"jim","ment":"Good"},{"username":"fred","ment":"great"}]

What do I need to change to get this?

• javascript
• arrays
• json
• push

Share Improve this question Follow edited Jun 8, 2011 at 8:31 tooba asked Jun 7, 2011 at 18:27 toobatooba 56955 silver badges2323 bronze badges 1

• 2 How is that JSON generated? -i.e. where are you viewing it? – David Tang Commented Jun 8, 2011 at 3:12

Add a ment  | 

1 Answer 1

Sorted by: Reset to default 3

Wait, is blogpost.ments a JavaScript array, or something else? If it were a JavaScript array, I don't see how executing the first line of code would update the JSON object as you described. I would expect it to automatically do what you expect, which is to push a new item on the end of the array.

In general, if you have an array blogpost.ments, with this value:

[{"username":"jim","ment":"Good"}]

and you execute:

blogpost.ments.push({ username: "fred", ment: "Great"});

You will most certainly end up with blogpost.ments having the value:

[{"username":"jim","ment":"Good"}, { "username": "fred", "ment": "Great"}]

Which leads me to believe that blogpost.ments is not actually an array, but something else. You should give the code for blogpost.ments.push if it is your own code.

So, basically ... make it an array, and it will work as you expect.

本文标签： javascriptHow to make a simple json array with pushStack Overflow