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How to fetch values from json array object without using object key name javascript?

Json Array Object
Through Ajax I will get dynamic data which is not constant or similar data based on query data will change. But I want to display charts so I used chartjs where I need to pass array data. So I tried below code but whenever data changes that code will break.
I cannot paste complete JSON file so after parsing it looks like this
[{"brand":"DUNKIN' DONUTS KEURIG","volume":1.9,"value":571757},{"brand":"MC CAFE","volume":1.1,"value":265096}];

You can use Object.keys and specify the position number to get that value
var valueOne =[];
var valueTwo = [];
jsonData.forEach(function(e){
valueOne.push(e[Object.keys(e)[1]]);
valueTwo.push(e[Object.keys(e)[2]]);
})

It seems like what you're trying to do is conditionally populate an array based the data you are receiving. One solution might be for you to use a variable who's value is based on whether the value or price property exist on the object. For example, in your forEach loop:
const valueOne = [];
jsonData.forEach((e) => {
const val = typeof e.value !== undefined ? e.value : e.average;
valueOne.push(val);
})

In your jsonData.forEach loop you can test existence of element by using something like:
if (e['volume']===undefined) {
valueone.push(e.price);
} else {
valueone.push(e.volume);
}
And similar for valuetwo...

You could create an object with the keys of your first array element, and values corresponding to the arrays you are after:
var data = [{"brand":"DUNKIN' DONUTS KEURIG","volume":1.9,"value":571757},{"brand":"MC CAFE","volume":1.1,"value":265096}];
var splitArrays = Object.keys(data[0]).reduce((o, e) => {
o[e] = data.map(el => el[e]);
return o;
}, {});
// show the whole object
console.log(splitArrays);
// show the individual arrays
console.log("brand");
console.log(splitArrays.brand);
console.log("volume");
console.log(splitArrays.volume);
// etc

How to extract json, multiple value using jquery

Hello I have a json data like this
KLOBS {"SL_VEF_APPLIED_VS_BOL_R1_KLOBS":["0.00247320692497939","0.000008129750823137272"]}
KL15 {"SL_VEF_APPLIED_VS_BOL_R1_KL15":["0.01890831252229754","0.9008162336184189"]}
I'm already try extract json
$.get('url_request.php?' + $(this).serialize(), function(data) {
var obj = data;
$.each(obj, function(key, value) {
console.log(key);
console.log(value);
});
});
$.each(obj, function(key, value) {
console.log(key);
console.log(value);
});
And I get result
KLOBS
{"SL_VEF_APPLIED_VS_BOL_R1_KLOBS":["0.00247320692497939","0.000008129750823137272"]}
KL15
{"SL_VEF_APPLIED_VS_BOL_R1_KL15":["0.01890831252229754","0.9008162336184189"]}
I want to get result like this:-
KLOBS
0.00247320692497939
0.000008129750823137272
KL15
0.01890831252229754
0.9008162336184189
How to call json like this ??
I don't know call multiple value data in Json.
Please help me.

Try this
var arr = {
KLOBS: {
SL_VEF_APPLIED_VS_BOL_R1_KLOBS: [
"0.00247320692497939",
"0.000008129750823137272"
]
},
KL15: {
SL_VEF_APPLIED_VS_BOL_R1_KL15: ["0.01890831252229754", "0.9008162336184189"]
}
};
Object.keys(arr).forEach(function(key, value) {
console.log(key);
Object.keys(arr[key]).forEach(function(val) {
arr[key][val].forEach(function(data) {
console.log(data);
});
});
});

In general you could do the following:
var KLOBS = {"SL_VEF_APPLIED_VS_BOL_R1_KLOBS":
["0.00247320692497939","0.000008129750823137272"]}
values = Object.keys(KLOBS).map(x=>{
return KLOBS[x];
})
values.forEach(x=>x.forEach(y=>console.log(y)))
jsfiddle
Object.keys gives you an array of the keys in an object.
Since I do not know the structure in advance, I assume it better thinking of more than one key.
With the function map, a function is applied to each member of the array returned by Object.keys. This is used to extract the values.
The resulting structure is an array of arrays.
Therefore a double forEach is needed to display every entry of the structure.

Better way to transform a collection using underscorejs

I'm trying to simply replace the invalid date with an empty string. I'm iterating through an array of objects, but whenever I try to use _.each() I get lost. If someone could show me a way to iterate through all the fieldsToCheck items in my list, that would be rad.
massage.removeBadDates = function(data){
var fieldsToCheck = [
"partsLeadTime",
"statusDate",
"targetDate",
"revisedTargetDate",
"quoteDate",
"dispositionDate",
"serviceDate",
"finalDate",
"receivedDate"]
var newData = []
_.map(data, function(value, index, list){
newData.push(value)
//single
if (list[index].partsLeadTime == "1900-01-01T00:00:00"){
newData[index].partsLeadTime = ""
}
});
return newData
};

You pretty much want something like this:
_.each(fieldsToCheck(function(field) {
if (list[index][field] == "1900-01-01T00:00:00") {
newData[index][field] = ""
}
});

Access the nested value in JSON without looping through it

This is my JSON, I want to directly get the zipCodes values from the JSON without looping through the JSON. How can I do it?
countries:[
{
name:'India',
states:[{
name:'Orissa',
cities:[{
name:'Sambalpur',
zipCodes:{'768019','768020'}
}]
}]
}
]

I think you are looking for
countries[0].states[0].cities[0].zipCodes
Please note, this works for the above JSON as there is only 1 country in countries array and same as for states and cities. However, if there are more than 1 country, state or city then, you will have to iterate to extract information until and unless you know the exact index.

As this is not an associative array, your option is only to use indexes like this:
countries[x].states[y].cities[0].zipCodes
Where x would be each representation of state in your array, in case, of course, that you have more than one.
Similarly y would be each state in each state in each country, in case you have more of those and you can do the same for cities if you need to.
EDIT:
Here's how you can iterate the array:
for(var c in countries)
{
var name = countries[c].name;
if (name === "CountryIAmLookingFor")
{
var statesList = countries[c].states;
for (var s in statesList)
{
var stateName = statesList[s].name;
.....
}
}
}
You can keep iterating until you find the country, state, and city you need, then extract the zipCodes from there as shown in the previous code snippet.

Without "looping"
You can do this crazy trick (not saying this is the best way, but this way you aren't looping through the JSON):
var myData = { 'Put Your Data': 'HERE' };
function getCodes(name, data) {
var sv = data.match(new RegExp(name+'([\\S\\s]*?}][\\S\\s]*?}])'))[1].match(/zipCodes":\[(.*?)\]/g), r = [];
sv.forEach(function (item) {
item.match(/\d+/g).forEach(function (sub) {
r.push(+sub);
});
});
return r;
}
getCodes('India', JSON.stringify(myData));
If your data is already string, then you don't need the JSON.stringify. The forEach you see isn't actually "looping" through the JSON. It's already extracted the zip codes and the code just adds the zip codes to the array. . This line:
var sv = JSON.stringify(data).match(new RegExp(name+'([\\S\\s]*?}][\\S\\s]*?}])'))[1].match(/zipCodes":\[(.*?)\]/g), r = [];
is what grabs the zip codes, it gets something like:
["zipCodes":["768019","768020"]"]
The next line:
item.match(/\d+/g)
will grab the numbers outputting something like:
["768019", "768020"]
The loop just adds the zip-codes to another array
With looping
You're better off looping through the JSON:
var myData = {}, // Your data
zips = [];
myData.countries.forEach(function(i) {
if (i.name === 'India') {
i.states.forEach(function(j) {
j.cities.forEach(function(l) {
l.zipCodes.forEach(function(m) {
zips.push(m);
});
});
});
}
});
//use "zips" array
PERFORMANCE AND SPEED TESTS
After testing copying an array about 500MB (half a gig) took about 30 seconds. That's a lot. Considering an extremely large JSON would be about ~5MB, looping through a little over 5MB of JSON takes about 0.14 seconds. You should never worry about speed.

Here's my "trick" for avoiding explicit iteration. Let JSON.parse or JSON.stringify do the work for you. If your JSON is in string form, try this:
var array = [];
JSON.parse(jsonString, function (key, value) {
if (key === "zipCodes") {
array = array.concat(value);
}
return value;
});
console.log(array); // all your zipCodes

Suppose your Json is like
countries =[
{
name:'India',
states:[{
name:'Orissa',
cities:[{
name:'Sambalpur',
zipCodes:768019768020
}]
},{
name:'mumbai',
cities:[{
name:'rea',
zipCodes:324243
}]
}]
}
]
So now we use MAP it will give you ZipCode of every cities
countries.map(function(s){
s.states.map(function(c){
c.cities.map(function(z){
console.log(z.zipCodes)
})
})
})
OR
If you use return statement then it will give you 2 array with two zip code as per over JSON
var finalOP = countries.map(function(s){
var Stalist = s.states.map(function(c){
var zip = c.cities.map(function(z){
return z.zipCodes
})
return zip
})
return Stalist
})
console.log(finalOP)

Javascript: How to parse a json array without knowing the key name?

I want to parse the following json:
{"key_410441":{"hashId":"hash123","tube_id":"4accdefk31"}}
Where key_410441 is the entry's name representing the object's value, and the following array is the object's data.
How can I retrieve it's value?
function defined(json) {
for (var i in json) {
var objId = json[i]. ????
}
}

Like Robo Robok said, use Object.keys(object)
if your json look like {"key_410441":{"hashId":"hash123","tube_id":"4accdefk31"}}
function defined(json) {
var hashId = json[Object.keys(json)[0]].hashId
var tube_id = json[Object.keys(json)[0]].tube_id
}
}
you can use shortcut json[Object.keys(json)] because you have olny one object
key_410441

Object keys are returned in form of an array by Object.keys(object)

I suppose you are using jquery and ajax to get a json from an external file. Then the piece of code would be:-
$.getJSON("aa.json", function(data) {
var obj = Object.keys(data),
json = data[obj];
for(var s in json) {
console.log(json[s]);
}
});