"Utilizing JavaScript to parse and extract data from a JSON

I just received a JSON object through a PHP get request and it has the following structure:

data == {"user_id":"7","emp_type_id":[{"0":"11","1":"10"}]}

My main focus right now is to retrieve the values within emp_type_id, which are "11" and "10" in this specific case.

While I have successfully accessed user_id by using data["user_id"], I am encountering difficulties in fetching the other values. I've attempted various methods such as:

eti=data["emp_type_id"];
var myVar = eti[0];

My goal is to ultimately iterate through all items in emp_type_id and store them in a JavaScript array.

javascriptjson

Answer №1

Try using a for in loop to iterate through the elements.

var data = {"user_id":"7","emp_type_id":[{"0":"11","1":"10"}]};
var eti = data["emp_type_id"];
var myVar = eti[0];
for(var entry in myVar){
  alert(entry + ":\t" + myVar[entry] );
}

Check out this running example on JSBIN

Answer №2

While Neal's answer may be helpful, it seems like there are other issues at hand. It appears that your json structure is incorrect.

a) data == {"user_id":"7","emp_type_id":[{"0":"11","1":"10"}]}

Wouldn't it make more sense for it to be

b) data == {"user_id":"7","emp_type_id":["11","10"]}

This explanation is in English

a) Is emp_type_id supposed to be an array with one object containing two fields 0 and 1?

b) Or should emp_type_id be an array with values 11 and 10?

If the correct option is b), then your json structure is incorrect.

Answer №3

Information is encapsulated within an object which contains two main properties, user_id and emp_type_id. Within emp_type_id exists an array consisting of a single element (???), this element itself being an object with the properties 0 and 1.

Accessing properties within an object can be done in two ways:

var prop = data['emp_type_id'];
var prop = data.emp_type_id;

If the property names are unconventional, the square bracket method must be used.

Therefore,

var prop0 = data.emp_type_id[0].0;
var prop1 = data.emp_type_id[0].1;

There may be concerns that using "0" and "1" as property names could be deemed unusual, requiring the following approach:

var prop0 = data.emp_type_id[0]["0"];
var prop1 = data.emp_type_id[0]["1"];

Answer №4

Give this a shot:

let eti = data.emp_type_id;
let myVar = eti[0];

Answer №5

let employeeType = data.emp_type_id;
let firstType = employeeType[0];

for(let property in firstType){
    console.log(firstType[property]);
}

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