I want to make specific json from table. I have a table, which has rows and 4 columns.
Here is my table I want to build an jsonarray from the table.
First value in the left column is key of json and last value in the right column is a valueof json.
I mean I want to get from table jsonarray, it must look as
json_from_form = [{color: 'id',
name: "mouse",
x: "table",
y: "book"}];
I have tried to build json, but have a problem with structure and setting a key in json object.
Please help me to buld right structure of json object.
var json_from_form_tmp = {};
$('#table').find('tbody tr').each(function (i) {
//var name = $(this).find('td:first').text();
json_from_form_tmp[i] = {
imd: $(this).find('td:eq(3) input').val()
};
});
console.log(json_from_form_tmp);
Here is my DEMO
You should use the jQuery map-function for this, here is an example:
$(function () {
var m = $("table tr").map(function (index, e) {
return {
color: $(e).children().eq(0).text(),
name: $(e).children().eq(1).text()
}
}).get();
});
Where m will be an array of objects as defined inside the map function.
To set a property of the object (json_from_form_tmp), use the ['propertyName'] notation.
//get the name of the property from the first column
var name = $(this).find('td:first').text();
//use that name as the name of the property. Your value fetch was right!
json_from_form_tmp[name] = $(this).find('td:eq(3) input').val();
Here is your fiddle with a tiny modification.
http://jsfiddle.net/bMzq8/32/
Related
I want to fetch only 1st element of json array
my json data :
{
id:"1",
price:"130000.0",
user:55,
}
{
id:"2",
price:"140000.0",
user:55,
}
i want to access the price of 1st json element
price : "13000.0"
my code
$.each(data_obj, function(index, element) {
$('#price').append(element.price[0]);
});
but my output
is '1'
Assuming that you have array of objects
var arr = [{
id:"1",
price:"130000.0",
user:55,
},
{
id:"2",
price:"140000.0",
user:55,
}]
console.log(arr[0].price)
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
You data isn't valid JSON, JSON data key must be wrap within double quote, but your data isn't wrapped in double quote
var data = [{
"id":"1",
"price":"130000.0",
"user":55
},{
"id":"2",
"price":"140000.0",
"user":55
}]
console.log(data[0]["price"]);
Hello You just need to add [] from starting and ending point of your json string. see here var data = JSON.parse( '[{ "id":"1","price":"130000.0","user":55},{"id":"2","price":"140000.0","user":55}]');
var priceValue = 0;
$.each(data, function(index, element) {if(index == 0){ priceValue = element.price;}});console.log(priceValue);
Your answer will be 13000.0
The element having the your JSON data means, we can able to use below code to get the first JSON data.
element[0].price
Thanks,
You are using for each loop and in function you get 2 params first one is index and second is the element itself. So this will iterate through all elements.
$.each(data_obj, function(index, element) {
$('#price').append(element.price);
});
If you just want to get first element
$('#price').append(data_obj[0].price);
var my_first_json_obj = data_obj[0]; // Your first JSON obj (if it's an array of json object)
var my_price = my_first_json_obj.price; // Your price
$('#price').append(my_price);
If you want only the first item's price, you don't need a loop here.
$('#price').append(data_obj[0].price);
would work here.
For further reading you can refer here
Following is the solution worked for my problem
I use return false;
$.each(data_obj, function(index, element) {
$('#price').append(element.price[0]);
return false;
});
Which gives only 1st value of array elements.
I wish to have an attribute called idField in my json object. Now this attribute is either an array if it contains multiple elements or just an object if it contains one element. I wish to create such an attribute from the data in an extjs store. In essence if the store contains just one element I need to insert this idField 'object' in the json object otherwise I need to insert an 'array' called idField in the json object. Please advise as to how to do that.
EDIT:
My store has 2 columns namely 'name' and 'type' in its data. What I wish is that if it contains just one element then my object should look like this:
{
...
idField : {
name : ...
type : ...
}
}
If my store contains 2 rows then my object should look like this :
{
...
idField : [
{
name : ...
type : ...
},
{
name : ...
type : ...
}
]
}
Also I have to INSERT this idField attribute inside the object. There is no currect idField attribute yet in the object.
EDIT 2:
I received this object in the console when I wrote console.log(Ext.getStore("My_store_name").data)
To get the data from the EXT JS store
var data = Ext.getStore("Your_Store_Name").data
In my snippet below I am assuming that you like to get the values from field name called item.
var data = Ext.getStore("Your_Store_Name").data
//imagine your JSON where you need to store is in variable myJSON
if (data.items.length == 1){
myJSON.idField = {type: 'sometype', name: data.item[0]} }
else if (data.item.length > 1)
{ //make an array of JSON
var list = [];
for(var i = 0; i < data.item.length; i++)
{
list.push({type: 'sometype', name: data.item[i]})
}
myJSON.idField = list; //set the array
}
In the past I've always used this to get a hidden column's data. I would hide the column with a css class, but the responsive feature doesn't work well with these.
var td = $('td', this);
var ID = $(td[0]).text();
So I found an alternative, by hiding the columns with these classes with the responsive feature.
"columnDefs": [
//Responsive classes
{ className: 'never', targets: 0 }, //Hide on all devices
{ className: 'all', targets: 1 }, //Show on all devices
]
and then I use either one of these.
var rowData = oTable1.fnGetData(this);
var rowData = oTable1.api().row(this).data();
//Grab the first indexed item in the list
var ID = rowData[0];
That works well if you don't have an AJAX source. It will return a comma separated list of the row data. However, when I try to use this with an AJAX source I just get [object Object] back (instead of a comma separated list) if I output the rowData variable in an alert.
How do I get the row data out of a table with an AJAX source?
It seem to be stored as string so [1, 2, 3] became [object Object] when you turn it into string. Do yourString = yourList.join(',') and store yourString to keep the coma-separated string.
For an object:
yourString = (function () {
var list = [];
for(var i in yourList)
if(yourList.hasOwnProperty(i))
list.push(yourList[i]);
return list.join(',');
})();
The function is not needed, it's just to limit the variables scope.
I ended up using an answer I found here.
Converting a JS object to an array
I can pull the entire row data from the table with this.
var rowData = oTable1.api().row(this).data();
In the console log I can see that it returns a javascript object like this.
Object { id="123456", full_name="Samuel Smith", Last_name="Smith" }
I use this function to convert the object into an array.
var array = $.map(rowData, function (value, index) {
return [value];
});
In the console log, my array would appear like this.
["123456", "Samuel Smith", "Smith"]
I can then extract any item from the array like this.
alert(array[0]);
Simplifying madvora's example:
var rowData = oTable1.api().row(this).data().to$();
rowDataArray = rowData.toArray();
I have to make an array which is fetching data from a table column one which is a text and 5th is value using jQuery and data is input dynamically. Array size is not fixed, and also need make 2 dimensional array using both column. Actually I have to make a chart so column 1 is giving name and column 2 is giving his ownership and data can be varied in each column. I have tried many code I am sending all but I am not getting anything at all:
var nameArray = [];//this should be 1 dimenional containing name as ['user1', 'user2', 'user3', 'user4', 'user5'];
var ownArray = new Array();//this should be 1 dimenional containing ownership as [parseInt(u1), parseInt(u2), parseInt(u3), parseInt(u4), parseInt(u5)];
var namenown = new Array();//this should be 2 dimensional array containg name and ownership as ['user1', parseInt(u1)], ['user2', parseInt(u2)], ['user3', parseInt(u3)];
['user4', parseInt(u4)], ['user5', parseInt(u5)]
$("#resourceUserDetails tbody tr:nth-child(1)").each(function () {
nameArray.push($(this).text());
//(tr).find('td:eq(2)').text();
//alert($(tr).find('td:eq(2)').text());
//var names = ['"' + nameArray.join('", "') + '"'];
});
$('#resourceUserDetails tbody tr:nth-child(5)').each(function () {
ownArray.push($(this).value());
});
$.each(nameArray, function (index, value) {
debugger;
alert(nameArray[index]);
debugger;
});
I am writing a bookmarklet (that will eventually be a plugin) to scrape web pages for list items in jQuery under a specified div. I'm having an issue with using JSON.stringify
The following code allows me to convert each individual item to JSON, but has issues when using join to concatenate each string.
var dMap = $("div").filter($("#<div-id>")).find("li").map(function() {
var iObject = {
id: $(this).data('id'),
text: $(this).text(),
list_name: $(this).closest('div').attr('id')
};
return JSON.stringify(iObject);
});
console.log(dMap);
This second snippet of code creates each object in the array correctly, but the resulting array doesn't log the resulting JSON.
var dMap = $("div").filter($("#,div-id.")).find("li").map(function() {
return {
id: $(this).data('id'),
text: $(this).text(),
list_name: $(this).closest('div').attr('id')
};
});
console.log(dMap);
var json = JSON.stringify(dMap);
console.log(json);
Any ideas?
According to the documentation for .map:
As the return value is a jQuery-wrapped array, it's very common to get() the returned object to work with a basic array.
Have you tried:
var json = JSON.stringify(dMap.get());