I create JSON object as:
var myJsonObject = JSON.stringify(objectString)
How I can add another item into myJsonObject??
myJsonObject is now a string you cannot add anything to it again until you change it back into a JSON object.
So you can technically do:
var myJsonObject = JSON.parse(myJsonObject); //change to obj
myJsonObject.somethingnew = true; //add something
myJsonObject = JSON.stringify(myJsonObject); //change back to string
Looks like you're re-serializing the string rather than parsing it.
var myJsonObject = JSON.parse(objectString);
then you can add a new item by using
myJsonObject['newItemName'] = newValue;
Hope that's clear.
If you mean you want to have an array of objects, you can do it like this:
//create an array with the result of your object (see the [] characters)
var myJsonArrayObject = JSON.stringify( [ objectString ] );
//add a new element to the array: parse the JSON, push the new element and stringify again:
JSON.stringify( JSON.parse( myJsonArrayObject ).push( newObject ) );
Related
I have this:
var myarray = [];
myarray ["first"] = "$firstelement";
myarray ["second"] = "$secondelement";
And I want to get the string:
"first":"$firstelement","second": "$secondelement"
How can I do it?
What you have is invalid (even if it works), arrays don't have named keys, but numeric indexes.
You should be using an object instead, and if you want a string, you can stringify it as JSON
var myobject = {};
myobject["first"] = "$firstelement";
myobject["second"] = "$secondelement";
var str = JSON.stringify(myobject);
console.log(str)
First of all, you'd want to use an object instead of an array:
var myarray = {}; // not []
myarray ["first"] = "$firstelement";
myarray ["second"] = "$secondelement";
The easiest way, then, to achieve what you want is to use JSON:
var jsonString = JSON.stringify(myarray);
var arrayString = jsonString.slice(1, -1);
JSON.stringify() method converts a JavaScript value to a JSON string, optionally replacing values if a replacer function is specified, or optionally including only the specified properties if a replacer array is specified.
var myarray = {};
myarray ["first"] = "$firstelement";
myarray ["second"] = "$secondelement";
console.log(JSON.stringify(myarray));
Use JSON.strinify()
JSON.stringify(item)
Example:
var imageBounds = [[40.712216, -74.22655], [46.773941, -79.12544]];
I need to create same from js. The problem that I am getting data in string format:
[40.712216, -74.22655], [46.773941, -79.12544]
so:
var mystr = "[40.712216, -74.22655], [46.773941, -79.12544]"
Ok, lets create empty array:
var myarr = []; // empty array
but how to add data to it? I know about push method but it's work only with arrays, and I have got text.
Make it valid JSON (by adding [ at beginning and ] at ending) afterward parse the string using JSON.parse method.
var mystr = "[40.712216, -74.22655], [46.773941, -79.12544]";
var res = JSON.parse('[' + mystr + ']');
console.log(res);
I have this type of list from javascript:
Amila,Asanka,Imaad,Kelum,Lakshan,Sagara,Thilina
I used the following code to convert to my output
var array = columnsload.split(",");
var string = JSON.stringify(columnsload);
var nameArray = string.split(',');
The output is like this :
"Amila,Asanka,Imaad,Kelum,Lakshan,Sagara,Thilina"
But I really need it like this :
["Amila","Asanka","Imaad","Kelum","Lakshan","Sagara","Thilina"]
Anyone know how to get output like this?
the split function is enough to convert the string into an array;
var names = "Amila,Asanka,Imaad,Kelum,Lakshan,Sagara,Thilina";
var nameArr = names.split(",");
console.log( nameArr );
http://www.w3schools.com/jsref/jsref_split.asp
Just do var nameArray = columnsload.split(',');. You dont need to stringify the array and then split it again, just one .split would be enough.
var columnsload = "Amila,Asanka,Imaad,Kelum,Lakshan,Sagara,Thilina";
var nameArray = columnsload.split(',');
console.log(nameArray);
If you need the whole thing to be string, you can run a JSON.stringify on the array after.
var columnsload = "Amila,Asanka,Imaad,Kelum,Lakshan,Sagara,Thilina";
var nameArray = columnsload.split(',');
console.log(JSON.stringify(nameArray));
// outputs ["Amila","Asanka","Imaad","Kelum","Lakshan","Sagara","Thilina"]
// as one string.
Supposed that I have this JSON STRING that is stored in a vairable:
{"name":"Joene Floresca"},{"name":"Argel "}
How can I make it
["Joene", "Argel"]
You mention you have a string. Use JSON.parse for that. Also, make sure it is an array. Afterwards, you can manually iterate through each object in the array and push the value
var str = '[{"name": "Joene Floresca"},{ "name": "Argel "}]';
var objA = JSON.parse(str);
var values = [];
for (var i = 0; i < objA.length; i++) {
for (var key in objA[i]) {
values.push(objA[i][key]);
}
}
console.log(values);
Assuming your JSON is an array, you can use map:
// Your JSON string variable
var jsonString = '[{"name":"Joene Floresca"},{"name":"Argel "}]';
// Parse the JSON to a JS Object
var jsObject = $.parseJSON(jsonString);
// Use map to iterate the array
var arr = $.map(jsObject, function(element) {
// Return the name element from each object
return element.name;
});
console.log(arr); // Prints ["Joene Floresca", "Argel "]
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
You can iterate over objects inside array and store the names in a second array.
var data = JSON.parse('[{"name":"Joene Floresca"},{"name":"Argel "}]');
var names = [];
data.forEach(function(model) {
names.push(model.name);
});
// names now contains ["Joene Floresca", "Argel"]
alert(names);
I am making a ajax request in jquery and in return getting the response but not as an array.
{"ErrorCode":0,"SeriesSocialStats":{"8970471":{"faves":1,"friendFaves":0,"friendLikes":0,"likes":1,"myFaves":1,"myLikes":0,"seriesId":"8970471"}}}
{"ErrorCode":0,"SeriesSocialStats":{"184072":{"faves":2,"friendFaves":0,"friendLikes":0,"likes":2,"myFaves":1,"myLikes":0,"seriesId":"184072"}}}
I want to merge the above two response and create an array something like this :
{"faves":1,"friendFaves":0,"friendLikes":0,"likes":1,"myFaves":1,"myLikes":0,"seriesId":"8970471"},{"faves":2,"friendFaves":0,"friendLikes":0,"likes":2,"myFaves":1,"myLikes":0,"seriesId":"184072"}
Please suggest how to do it. I want to take it in array and store it locally may be in config varaible get:[] and then access somewhat like config.get[data["seriesId"]].
you need to convert your response into an array of objects:
var response = [
{"ErrorCode":0,...},
{"ErrorCode":0,...},
{"ErrorCode":0,...},
]
in actual:
jsonResponse = [
{"ErrorCode":0,"SeriesSocialStats":{"8970471":{"faves":1,"friendFaves":0,"friendLikes":0,"likes":1,"myFaves":1,"myLikes":0,"seriesId":"8970471"}}},
{"ErrorCode":0,"SeriesSocialStats":{"184072":{"faves":2,"friendFaves":0,"friendLikes":0,"likes":2,"myFaves":1,"myLikes":0,"seriesId":"184072"}}}
]
then loop through:
var newArray = []
for(var i=0;i<jsonResponse.length;i++){ //loop through items
var stats = jsonResponse[i].SeriesSocialStats;
for(key in stats){ //loop through "SeriesSocialStats" numbers
newArray.push(stats[key]);
}
}
so it will be like:
newArray = [
{"faves":1,"friendFaves":0,"friendLikes":0,"likes":1,"myFaves":1,"myLikes":0,"seriesId":"8970471"},
{"faves":2,"friendFaves":0,"friendLikes":0,"likes":2,"myFaves":1,"myLikes":0,"seriesId":"184072"}
]
You could do
var obj1 = {"ErrorCode":0,"SeriesSocialStats":{"8970471":{"faves":1,"friendFaves":0,"friendLikes":0,"likes":1,"myFaves":1,"myLikes":0,"seriesId":"8970471"}}};
var obj2 = {"ErrorCode":0,"SeriesSocialStats":{"184072":{"faves":2,"friendFaves":0,"friendLikes":0,"likes":2,"myFaves":1,"myLikes":0,"seriesId":"184072"}}};
var arr = [];
arr.push(ob1.SeriesSocialStats);
arr.push(ob2.SeriesSocialStats);
Best way convert your server response to array structure, like mentioned by Joseph, instead of doing double processing from object to array.