How to check data is getting pushed into JSON or not

How to check data is getting pushed into JSON or not - javascript

JSON
This is my JSON structure. I am pushing data into this on button click.
var arrtopic = {
"info" : []
};
JS
I wrote this is function
arrtopic.info.push({
"Name" :name,
"Number" : num
});
JS for json data display
function displayJson(){
var obj = eval ("(" + arrtopic + ")");
document.getElementById("newme").innerHTML=obj.info.Name;
}
This is not working, please suggest something
Thank you in advance for your help

Try this
function displayJson(){
document.getElementById("newme").innerHTML= arrtopic.info[0].Name;
}

You are doing correct just use
console.log(arrtopic.info[0].Name);
instead of arrtopic.info.Name

function displayJson(){
var obj =JSON.parse(arrtopic);
document.getElementById("newme").innerHTML=obj.info.Name;
}
You can also use alert(obj.count); to fine whether the items are being pushed into

Related

Naming a JSON array using Jquery

I have an array of JSON:
[{"AvatarURL":"https://avatars1.githubusercontent.com/u/7849225?v=4","Name":"simplenlg","Score":22.82041,"Updatedat":"2018-07-21T10:58:33Z"},{"AvatarURL":"https://avatars1.githubusercontent.com/u/8931462?v=4","Name":"aws-microservices-deploy-options","Score":20.521696,"Updatedat":"2018-07-20T12:22:07Z"},{"AvatarURL":"https://avatars3.githubusercontent.com/u/4046529?v=4","Name":"useful-jenkins-groovy-init-scripts","Score":21.447626,"Updatedat":"2018-07-18T19:52:02Z"},{"AvatarURL":"https://avatars1.githubusercontent.com/u/6755615?v=4","Name":"dnsjava","Score":34.74705,"Updatedat":"2018-06-28T15:16:45Z"},{"AvatarURL":"https://avatars3.githubusercontent.com/u/504773?v=4","Name":"luke","Score":19.239859,"Updatedat":"2018-06-28T07:27:26Z"},{"AvatarURL":"https://avatars3.githubusercontent.com/u/536912?v=4","Name":"Wicket-tutorial-examples","Score":37.265644,"Updatedat":"2018-07-14T04:28:50Z"},{"AvatarURL":"https://avatars0.githubusercontent.com/u/33330803?v=4","Name":"nexus-repository-apt","Score":44.401646,"Updatedat":"2018-07-06T18:28:13Z"},{"AvatarURL":"https://avatars2.githubusercontent.com/u/1321963?v=4","Name":"marc4j","Score":28.282797,"Updatedat":"2018-07-07T15:58:57Z"},{"AvatarURL":"https://avatars0.githubusercontent.com/u/5622390?v=4","Name":"jamonapi","Score":24.564436,"Updatedat":"2018-07-16T07:44:35Z"},{"AvatarURL":"https://avatars2.githubusercontent.com/u/1123352?v=4","Name":"osgi.enroute","Score":7.6444883,"Updatedat":"2018-07-17T08:26:51Z"}]
I want it to be:
{
gitdList: [
{"AvatarURL":"https://avatars1.githubusercontent.com/u/7849225? v=4","Name":"simplenlg","Score":22.82041,"Updatedat":"2018-07-21T10:58:33Z"},
{"AvatarURL":"https://avatars2.githubusercontent.com/u/1123352?v=4","Name":"osgi.enroute","Score":7.6444883,"Updatedat":"2018-07-17T08:26:51Z"}
]
}
I searched and am finding solutions regarding php only , to use json.encode.
How do I do it using JQUERY?

Have you try like this way? just create an empty object like this object = {} and assign your existing value i.e avatar_urls to it with your desired key i.e gitdList. Hope this will work for you.
var avatar_urls = [{"AvatarURL":"https://avatars1.githubusercontent.com/u/7849225?v=4","Name":"simplenlg","Score":22.82041,"Updatedat":"2018-07-21T10:58:33Z"},{"AvatarURL":"https://avatars1.githubusercontent.com/u/8931462?v=4","Name":"aws-microservices-deploy-options","Score":20.521696,"Updatedat":"2018-07-20T12:22:07Z"},{"AvatarURL":"https://avatars3.githubusercontent.com/u/4046529?v=4","Name":"useful-jenkins-groovy-init-scripts","Score":21.447626,"Updatedat":"2018-07-18T19:52:02Z"},{"AvatarURL":"https://avatars1.githubusercontent.com/u/6755615?v=4","Name":"dnsjava","Score":34.74705,"Updatedat":"2018-06-28T15:16:45Z"},{"AvatarURL":"https://avatars3.githubusercontent.com/u/504773?v=4","Name":"luke","Score":19.239859,"Updatedat":"2018-06-28T07:27:26Z"},{"AvatarURL":"https://avatars3.githubusercontent.com/u/536912?v=4","Name":"Wicket-tutorial-examples","Score":37.265644,"Updatedat":"2018-07-14T04:28:50Z"},{"AvatarURL":"https://avatars0.githubusercontent.com/u/33330803?v=4","Name":"nexus-repository-apt","Score":44.401646,"Updatedat":"2018-07-06T18:28:13Z"},{"AvatarURL":"https://avatars2.githubusercontent.com/u/1321963?v=4","Name":"marc4j","Score":28.282797,"Updatedat":"2018-07-07T15:58:57Z"},{"AvatarURL":"https://avatars0.githubusercontent.com/u/5622390?v=4","Name":"jamonapi","Score":24.564436,"Updatedat":"2018-07-16T07:44:35Z"},{"AvatarURL":"https://avatars2.githubusercontent.com/u/1123352?v=4","Name":"osgi.enroute","Score":7.6444883,"Updatedat":"2018-07-17T08:26:51Z"}]
var object = {};
object.gitdList = avatar_urls;
console.log(object);
Edit: pretty neat and better way to do it.
var object = { gitdList: avatar_urls};
console.log(object);

maybe like this:
var data=[{"AvatarURL":"https://avatars1.githubusercontent.com/u/7849225?v=4","Name":"simplenlg","Score":22.82041,"Updatedat":"2018-07-21T10:58:33Z"},{"AvatarURL":"https://avatars1.githubusercontent.com/u/8931462?v=4","Name":"aws-microservices-deploy-options","Score":20.521696,"Updatedat":"2018-07-20T12:22:07Z"},{"AvatarURL":"https://avatars3.githubusercontent.com/u/4046529?v=4","Name":"useful-jenkins-groovy-init-scripts","Score":21.447626,"Updatedat":"2018-07-18T19:52:02Z"},{"AvatarURL":"https://avatars1.githubusercontent.com/u/6755615?v=4","Name":"dnsjava","Score":34.74705,"Updatedat":"2018-06-28T15:16:45Z"},{"AvatarURL":"https://avatars3.githubusercontent.com/u/504773?v=4","Name":"luke","Score":19.239859,"Updatedat":"2018-06-28T07:27:26Z"},{"AvatarURL":"https://avatars3.githubusercontent.com/u/536912?v=4","Name":"Wicket-tutorial-examples","Score":37.265644,"Updatedat":"2018-07-14T04:28:50Z"},{"AvatarURL":"https://avatars0.githubusercontent.com/u/33330803?v=4","Name":"nexus-repository-apt","Score":44.401646,"Updatedat":"2018-07-06T18:28:13Z"},{"AvatarURL":"https://avatars2.githubusercontent.com/u/1321963?v=4","Name":"marc4j","Score":28.282797,"Updatedat":"2018-07-07T15:58:57Z"},{"AvatarURL":"https://avatars0.githubusercontent.com/u/5622390?v=4","Name":"jamonapi","Score":24.564436,"Updatedat":"2018-07-16T07:44:35Z"},{"AvatarURL":"https://avatars2.githubusercontent.com/u/1123352?v=4","Name":"osgi.enroute","Score":7.6444883,"Updatedat":"2018-07-17T08:26:51Z"}];
var new_data={ 'gitdList': data };
console.log(new_data);

fetch data from nested JSON object in a single line

This is my JSON data ....
{"comp1":["$.Create_Keypair1_Keypair_name"]}
I want to get the value "Create_Keypair1_Keypair_name".but all the keys and values are dynamic.but the object always have single data.
I have Object.keys(temp).It shows only ["comp1"] i need
$.Create_Keypair1_Keypair_name only....

Try this:
var data = {"comp1":["$.Create_Keypair1_Keypair_name"]}
for (var key in data) {
console.log(data[key])
}
This will log $.Create_Keypair1_Keypair_name.

From what I am understanding each object will have a single value. If the is the case then you do not need the array in the object. You can do this.
var tempy = {"comp":"ksmdfnsfdnsdfn"}
Then do this to ge the value.
tempy.comp
Or if you need the keys.
Object.keys(tempy)

you might be looking for this
var temp = {"comp1":["$.Create_Keypair1_Keypair_name"]}
Object.keys(temp).forEach(function(key){
console.log(temp[key]);
});

json does not include object name during stingify

I am trying to convert a javascript object into json using JSON.stringify() method. My problem is that when it stingify the object , it only stingify the object's key and values.It does not include the object name.
I want the output like {"Color" : "{"Name":"background","Type":"Color","Value":"Red"}"} but the output comes is {"Name":"background","Type":"Color","Value":"Red"}.
Here is Demo .
I know that json works like this but i want the way to acheive this. Thanks in advance !

The object doesn't know its own name, so you need to explicitly name it in the JSON:
JSON.stringify({'Color': color});

You can make your createColor function return an object with a property that contains the color object:
function createColor() {
var color = new Color();
color.Name = "background";
color.Type = "Color";
color.Value = "Red";
return { Color: color };
}
Demo: http://jsfiddle.net/Guffa/hMwjq/5/

try this :
(function () {
var color = createColor();
jsonObject = {};
jsonObject.color = color;
var json = JSON.stringify(jsonObject);
console.log(json);
})();
see full Demo

'length' is null or not an object? IE 8

I get the following error in IE8:
length is null or not an object
Anyone have any ideas? Feedback greatly appreciated.
function refresh() {
$.getJSON(files+"handler.php?action=view&load=update&time="+lastTimeInterval+"&username="+username+"&topic_id="+topic_id+"&t=" + (new Date()), function(json) {
if(json.length) {
for(i=0; i < json.length; i++) {
$('#list').prepend(prepare(json[i]));
$('#list-' + count).fadeIn(1500);
}
var j = i-1;
lastTimeInterval = json[j].timestamp;
}
});
}

Just check for the object being null or empty:
if (json && json.length) {
// ...
}
C'mon gang this was glaringly obvious :-)

JSON objects (returned by jQuery or otherwise) do not have a length property. You'll need to iterate over the properties, most likely, or know the structure and simply pull out what you want:
$.getJSON( ..., ..., function( json ) {
for( var prop in json ) {
if( !json.hasOwnProperty( prop ) ) { return; }
alert( prop + " : " + json[prop] );
}
} );
Alternatively, grab a library like json2 and you'll be able to stringify the object for output/debugging.

pop the JSON in a span then clip it and paste it here so we can see it:
<span id="JSObject2">empty</span>
with the json2.js from here: (link for it at bottom of the page) http://www.json.org/js.html
myJSON = JSON.stringify(json);
$('#JSObject2').text(myJSON);
Using that, we can help you better, and you can see what you have!

What does your returned JSON look like? If you're returning an object, length might not be explicitly defined, whereas if you're returning an array, it should be defined automatically.

First thing that comes to mind is that length is not a property of whatever json is. What is the json variable supposed to be anyway?

A JSON is an object, you seem to be treating it like an array. Does it really have a length property? Show us the JSON?
You might need to use a for..in instead.
EDIT: Can you make the JSON from the backend structure like so?
({
"foo": []
})

JSON: How do I alert the name of the first node in level 1 in this code snippet?

var response = "{\"tree\":[{\"level1\":[{\"node\":{\"id\": 1,\"name\": \"paradox\",\"parent\": 0}}]},{\"level2\":[{\"node\":{\"id\": 2,\"name\": \"lucent\",\"parent\": 1}},{\"node\":{\"id\": 3,\"name\": \"reiso\",\"parent\": 1}}]},{\"level3\":[{\"node\":{\"id\": 4,\"name\": \"pessi\",\"parent\": 3}},{\"node\":{\"id\": 5,\"name\": \"misho\",\"parent\": 2}}]},{\"level4\":[{\"node\":{\"id\": 6,\"name\": \"hema\",\"parent\": 5}},{\"node\":{\"id\": 7,\"name\": \"iiyo\",\"parent\": 4}}]}]}";
var data = eval("(" + response + ")");
This is a dummy json response I am currently testing. Now how do I get the value of "name" in the 1st node of "level1" from the "tree"? Thanks

var level1name = data.tree[0].level1[0].node["name"];

Firebug can be your friend, you could add a watch on the data var ( as i did ) to find this solution.
http://getfirebug.com/
alert(data.tree[0].level1[0].node.name);

alert(data.tree[0].level1[0].node.name);

Develop Reference

JavaScript is the programming language of the Web.

How to check data is getting pushed into JSON or not - javascript

Try this function displayJson(){ document.getElementById("newme").innerHTML= arrtopic.info[0].Name; }

You are doing correct just use console.log(arrtopic.info[0].Name); instead of arrtopic.info.Name

function displayJson(){ var obj =JSON.parse(arrtopic); document.getElementById("newme").innerHTML=obj.info.Name; } You can also use alert(obj.count); to fine whether the items are being pushed into

Related

Naming a JSON array using Jquery

fetch data from nested JSON object in a single line

json does not include object name during stingify

'length' is null or not an object? IE 8

JSON: How do I alert the name of the first node in level 1 in this code snippet?

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