I have a data set as below:
data = '{"a":1,"b":2,"c":3},{"a":4,"b":5,"c":6},{"a":7,"b":8,"c":9}';
I am trying to make a function with the data set as its parameter, but the parameter wouldn't be read. Here is what I did:
function add(data) { alert(data); } add(data);
I only get [object Object],[object Object] ... What's the problem here? Thanks.
The JSON string is wrong. It should be actually:
var data = '[{"a":1,"b":2,"c":3},{"a":4,"b":5,"c":6},{"a":7,"b":8,"c":9}]';
After that, you need to convert the JSON String into JSON object using the code below:
JSON.parse(d) /* d is the parameter of the method 'add()' */
The alert will give you [object Object] output, as the variable data is itself the object. So if you want to see the whole json data, you need to console.log as:
console.log(JSON.parse(d));
Watch the demo.
alert(JSON.stringify(JSON.parse(d)));First of all, your data value is incorrect. Since it has 3 objects it has to be in an array. So, your data should be
data = '[{"a":1,"b":2,"c":3},{"a":4,"b":5,"c":6},{"a":7,"b":8,"c":9}]';
Then you need to use JSON.parse function to parse the string data into javascript object and then pass the object.
function add(data)
{
alert(data);
alert(data[0].a); //access 1ts objects a value
}
var data = JSON.parse(data);
add(data);
First you should pass the function an object parameter and you can store the object in an array:
var data = []; //array
function add(d) {
data.push(d); //add passed item to array
console.dir(data); //this will print the whole object
}
add({"a":1,"b":2,"c":3});
console.dir() will make you print the properties within the object.
You can use JSON.stringify().
The data needs to have a JSON structure however.
So in your case that would be:
var data = [{"a":1,"b":2,"c":3},{"a":4,"b":5,"c":6},{"a":7,"b":8,"c":9}]
add(JSON.stringify(data))
[{"a":1,"b":2,"c":3},{"a":4,"b":5,"c":6},{"a":7,"b":8,"c":9}] //output of JSON.Stringify()
am also getting same issue few hours later and I fixed it using JSON.parse(data)..Like bellow coding
var data = '[{"a":1,"b":2,"c":3},{"a":4,"b":5,"c":6},{"a":7,"b":8,"c":9}]';
var obj = JSON.parse(data);
obj.forEach(myFunction);
function myFunction(item, index) {
var eachid = item.id;
console.log("Item-id", eachid);//you will get id
add(eachid);
}
you are directly pass the data .so only you get the [objcet Object]...if you using JSON.parse(data) ,You will get the id of each item
