Create JavaScript object of asterisk separated strings

Question

I've three strings.

var ids = "1*2*3";
var Name ="John*Brain*Andy";
var Code ="A12*B32*C38";

I want to create a JavaScript object of it.

You mean: you want those asterisk separated strings convert into arrays and put them all in one object? BTW, a ‘JSON object’ doesn't exist, JSON is merely a notation, a way to represent a JavaScript object in plain text. — Marcel Korpel
– Marcel Korpel, Commented Jun 19, 2010 at 11:21
What is your use for them, passing as data option to an ajax call? — Nick Craver
– Nick Craver, Commented Jun 19, 2010 at 11:23
No 1 is for John and A12 is his code. So I want first item of the array to be having three props i.e. Id, name and code with values 1,John, A12 respectively. — IsmailS
– IsmailS, Commented Jun 19, 2010 at 11:31

Marcel Korpel · Accepted Answer · 2010-06-19 11:45:11Z

2

A JSON object is just a string, so it would be:

var json = '{"ids":"'+ids+'","Name":"'+Name+'","Code":"'+Code+'"}';

If you want the strings converted into string arrays:

var json = '{"ids":["'+ids.replace(/\*/g,'","')+'"],"Name":["'+Name.replace(/\*/g,'","')+'"],"Code":["'+Code.replace(/\*/g,'","')+'"]}';

If you are not at all looing for JSON, but in fact a Javascript object, it would be:

var obj = {
  ids: ids.split('*'),
  Name: Name.split('*'),
  Code: Code.split('*')
};

Based on your description "I want first item of the array to be having three props i.e. Id, name and code with values 1,John, A12 respectively." it would however be completely different:

var Ids = ids.split('*'), names = Name.split('*'), codes = Code.split('*');
var arr = [];
for (var i = 0; i < Ids.length; i++) {
  arr.push({ Id: Ids[i], name: names[i], code: codes[i] });
}

And if you want that as JSON, it would be:

var Ids = ids.split('*'), names = Name.split('*'), codes = Code.split('*');
var items = [];
for (var i = 0; i < Ids.length; i++) {
  items.push('{"Id":"'+Ids[i]+'","name":"'+names[i]+'","code":"'+codes[i]+'"}');
}
json = '[' + items.join(',') + ']';

(Note: The last code only works properly when the strings doesn't contain any quotation marks, otherwise they have to be escaped when put in the string.)

edited Jun 19, 2010 at 11:45

Marcel Korpel

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answered Jun 19, 2010 at 11:22

Guffa

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5 Comments

Marcel Korpel Over a year ago

I think the OP confuses JSON strings with JavaScript objects.

IsmailS Over a year ago

ID 1 is for John and A12 is his code. So I want first item of the array to be having three props i.e. Id, name and code with values 1,John, A12 respectively. And yes I was looking for Javascript object. But I confused it with JSON

IsmailS Over a year ago

Thank you very much. Can you please also answer this one stackoverflow.com/questions/3075343/…

IsmailS Over a year ago

How should I access Id property on first item? I'm trying to access value 1 on arr[0].Id but I'm getting empty string

IsmailS Over a year ago

Its working. I'm sorry! My string starts with asterisk so first item is empty.

Oleg · Accepted Answer · 2010-06-19 11:58:29Z

1

I find that Guffa give a good answer. I want only dissuade from the manual JSON serialisation because Name properties could have a special characters which must be escaped. So I suggest a minimal change of Guffa's suggestion and use JSON.stringify (see http://www.json.org/js.html)

var Ids = ids.split('*'), names = Name.split('*'), codes = Code.split('*');
var arr = [];
for (var i = 0; i < Ids.length; i++) {
  arr.push({ Id: Ids[i], Name: names[i], Code: codes[i] });
}
var result = JSON.stringify(arr);

answered Jun 19, 2010 at 11:58

Oleg

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1 Comment

IsmailS Over a year ago

+1 Thank you Oleg. Currently I don't need JSON of it. I will edit the question. I will use stringify when I will need JSON. Thanks again

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