I want to ask because I doubt it. Can I put a JSON inside JSON? Like this.
var json = {
test = { "name":"test", "age":"99" };
};
So I can use it like this :
console.log(json.test.name);
Thank you for your answer.
Yes, your syntax is just wrong:
var json = {
test: { "name":"test", "age":"99" }
^^ ^^ no semi-colon
};
And for clarification, what you have is a Javascript Object Literal, not JSON. JSON is a string representation of a Javascript Object**
** Simplified explanation. Full details http://json.org/
Please correct your json :
var jsonVar = {test :{ "name":"test", "age":"99" }};
Also avoid creating a variable using reserved words like json. use jsonVar, jsonVal etc.
console.log(jsonVar);
console.log(jsonVar.test);
console.log(jsonVar.test.name);
console.log(jsonVar.test.age);
and their respective ans in firebug console.
Object { test={...}}
Object { name="test", age="99"}
test
99
Related
I have this javascript file which looks like below:
var abc= {
"a" : {
"label": "Monthly",
"URL": "xyz.com",
"ArchTag": "M",
"archData": {
"Feb 2016":"20160229",
"Jan 2016":"20160129",
"Dec 2015":"20151231"
}}};
so I want a way to edit this and say add a new month detail. I guess its a json inside javascript. So how can one edit it in a standard way.
If you can rely on the data looking exactly like this every time then you can just hack off the bit that stops it being JSON:
json_data = json.loads('{' + json_file.read().partition('{')[2])
(or use a regex, or whatever you prefer for string manipulation)
You should still beware that JavaScript is not the same as JSON, so you need some confidence that what you're given will always be an assignment of a valid JSON associative array to a variable.
If, on the other hand, you're being passed arbitrary JavaScript and you're expected to evaluate it, then you have a much bigger problem to solve. What if someone gives you var xyz = "Monthly"; var abc = {"label" : xyz, "URL" : "xyz" + "." + "com"}?
You need a JavaScript engine to solve that more general problem, not just a JSON parser. For example, js2py claims to be a complete JavaScript engine written in Python, but I've never used it so I can't recommend or dis-recommend it.
There are also security issues to consider in executing code from untrusted sources, beyond those you consider if all you're doing is parsing JSON from an untrusted source. So if you need to use a JavaScript engine, make sure you properly understand how it is sandboxed.
Your code is Javascript, not JSON...
With this code in JS you just create a new Object.
But JSON IS NOT A LANGUAGE!!.!
Json is a solution to efficiency store/transmit datas (as assiocative arrays).
Just try to do not define abc:
Your JSON file:
{
"a" :
{
"label": "Monthly",
"URL": "xyz.com",
"ArchTag": "M",
"archData":
{
"Feb 2016":"20160229",
"Jan 2016":"20160129",
"Dec 2015":"20151231"
}
}
}
If you can not remove var abc of your file, read the file in a string, remove the first characters of the string and load the new string.
try:
with open(file) as json_file:
data = file.read()
json_data = json.loads(data[9:])
pprint(json_data)
except Exception as e:
print(e)
if it is not always written var abc then start your string at the first { index.
Actually the file content is not json because of the var you mentioned. you should remove that part dynamically:
json_text = json_file.read().replace('var abc=','')
json_data = json.dumps(json_text)
pprint(json_data)
You can use regex to replace the var assignment piece:
with open('file.txt') as json_file:
data = json_file.read()
data = re.sub(r'^var\s*\S*\s*=\s*', '', data)
json_data = json.loads(data)
I need to push an an object into an array in in a Json file.
To make it simple lets say that my Json looks like this:
var JsonObj = {
"elements" : []
}
I tried Push() method but it didnt work.
tried also to assign to JsonObj.elements[0]= ... it also fails.
How can i make it work?
Try that way, it has to work:
JsonObj.elements.push(1);
FIddle: https://jsfiddle.net/29qa4bfw/1/
This is basic Javascript. nothing to do with Json or jQuery:
var jsonObj = {
"elements" : []
};
jsonObj.elements.push(1);
jsonObj.elements.push(1.5);
jsonObj.elements.push("some text");
jsonObj.elements.push({element: "some element"});
Here's a jsbin to fool around with: http://jsbin.com/hajale/2/edit
For some reason I just can't seem to be able to display properties from this JSON string:
http://www.easports.com/iframe/fifa14proclubs/api/platforms/PS4/clubs/51694/members
I've sat here for the last 2-3 hours trying out different ways to select single properties such as the name of the first person in the array. A couple selectors I've tried:
$("#output").append(data.raw[0].176932931.name);
$("#output").append(data.raw[0][0].name);
I always get the same error. "data.raw[0] is undefined". The JSON string is valid, I'm able to output the whole string to my page using:
document.getElementById('output').innerHTML=data.toSource();
Parsing it into a JSON object gives me another error because it already is a JSON object. By using console.log(data) I'm able to view the JSON object properly in Firebug.
data is the name of the Javascript JSON object variable that is being returned from my YQL statement.
Please, if anyone could provide some examples as to how I should go about accessing the properties of the above JSON string, that would be great.
UPDATE:
Here's the callback function from my YQL statement:
function cbfunc(json)
{
if (json.query.count)
{
var data = json.query.results.json;
$("#output").append(data.raw[0]["176932931"].name);
}
You need to use bracket notation, as identifiers starting with digits are invalid
$("#output").append(data.raw[0]["176932931"].name);
as "176932931" is an integer key so you have to access like json["176932931"].
For example
data.raw[0]["176932931"].name
see fiddle here
.count isn't a property of a json object. Try this:
var something = {"raw":[{"176932931":{"name":"Shipdawg","blazeId":176932931,"clubStatus":0,"onlineStatus":0,"nucleusId":2266699357,"personaName":"Shipdawg"},"182141183":{"name":"Beks8","blazeId":182141183,"clubStatus":0,"onlineStatus":0,"nucleusId":2272736228,"personaName":"Beks8"},"219929617":{"name":"ChelseaFC_26","blazeId":219929617,"clubStatus":0,"onlineStatus":0,"nucleusId":2304510098,"personaName":"ChelseaFC_26"},"457588267":{"name":"Lazy__Rich","blazeId":457588267,"clubStatus":0,"onlineStatus":0,"nucleusId":2495578386,"personaName":"Lazy__Rich"},"517570695":{"name":"x0__andrew__0x","blazeId":517570695,"clubStatus":0,"onlineStatus":1,"nucleusId":2549150176,"personaName":"x0__andrew__0x"},"912396727":{"name":"mizz00-","blazeId":912396727,"clubStatus":0,"onlineStatus":1,"nucleusId":1000118566560,"personaName":"mizz00-"},"915144354":{"name":"MisterKanii","blazeId":915144354,"clubStatus":2,"onlineStatus":0,"nucleusId":2281969661,"personaName":"MisterKanii"}}]}
function cbfunc(json)
{
if (json.raw.length)
{
$("#output").append(json.raw["0"]["176932931"].name);
}
}
cbfunc(something);
Tell me if this works for you:
function cbfunc(json)
{
$each(json, function(key, object){
console.log(key, object);
});
var raw = query.results.json.raw;
console.log(raw );
// uncomment it if you want some extra check.
if (/*typeof data.raw !=='undefined' && */data.raw.length > 0)
{
//console.log(data.raw[0]["176932931"].name);
//$("#output").append(data.raw[0]["176932931"].name);
}
}
If this works for you there's no need to reference the object to data, simply use the object its self.
JS fiddle: http://jsfiddle.net/q8xL3/2/
I want to put a JSON object into a javascript variable as a sting in order to create a graph.
qm.createGraphData = function() {
$.post("ajax_getGraphDataWebsite ", function(json) {
qm.negativesData = json;
},"json");
qm.data = [{
"xScale":"ordinal",
"comp":[],
"main":[{
"className":".main.l1",
qm.negativesData},{
"className":".main.l2",
qm.negativesData}],
"type":"line-dotted",
"yScale":"linear"}];
}
the string value should be added to the "data" section. Now the object get's added but I need to add the string value to the variable like the sample below:
{"data":[{"x":"3283581","y":"2013-10-16"},{"x":"1512116","y":"2013-10-17"},{"x":"3967","y":"2013-10-18"},{"x":"1094","y":"2013-10-19"},{"x":"853","y":"2013-10-20"},{"x":"1205","y":"2013-10-21"},{"x":"2618700","y":"2013-10-22"},{"x":"3928291","y":"2013-10-23"},{"x":"3670318","y":"2013-10-24"},{"x":"3347369","y":"2013-10-25"},{"x":"2525573","y":"2013-10-26"},{"x":"3224612","y":"2013-10-27"},{"x":"3992964","y":"2013-10-28"},{"x":"3949904","y":"2013-10-29"},{"x":"3568618","y":"2013-10-30"},{"x":"3104696","y":"2013-10-31"},{"x":"3246932","y":"2013-11-01"},{"x":"2817758","y":"2013-11-02"},{"x":"3198856","y":"2013-11-03"},{"x":"3952957","y":"2013-11-04"},{"x":"3934173","y":"2013-11-05"},{"x":"3878718","y":"2013-11-06"},{"x":"3642822","y":"2013-11-07"},{"x":"3186096","y":"2013-11-08"}]}
This would generate the right graph for me. Does anyone know how to convert the json object into a string like above and to send it to the qm.negativesData variable?
// UPDATE
Now I've got the string with the qm.negativesData = JSON.stringify(json); solution
But my qm.negativesdata won't get added to the qm.data variable... i'm getting a console error SyntaxError: invalid property id
I suppose i'm not adding them the right way?
To convert a JSON object into a JSON string, you can try myObject.stringify(), JSON.stringify(myObject), or if you are using a library using the built in function of that library.
So, you could do something like: qm.negativesData = myObject.stringify()
Cheers
This code works:
$(this).load($('.pageloadlabel', this).attr('href'), {category: 1});
This code doesn't work:
var data = '{category: 1}';
$(this).load($('.pageloadlabel', this).attr('href'), data);
The question is, how can I make it work?
Your data is not a Javascript object but a string, you can convert it to object by eval e.g.
data = eval('(' + data + ')');
but eval is considered dangerous, so better to parse string as JSON e.g.
data = JSON.parse(data)
For JSON lib you can use json2
It's not JSON, it's a javascript object.
var data = { category: 1 };
If you have a string, you would have to convert it to a object.
And notice that your string is not a valid JSON, see the link for more details.
Take out the quotes, the load function is expecting an object, not a string.
Have you tried to use eval() on data?
var data = '{category: 1}';
$(this).load($('.pageloadlabel', this).attr('href'), eval(data));