Hi I have a json array in the below format.
{
"data": {
"title": "MainNode"
},
"children": [{
"data": {
"title": "Firstchild",
"description": "Texttexttext"
},
"children": [{
"data": {
"title": "Firstchildschild",
"description": "Texttexttext"
},
"children": [{
"data": {
"title": "FirstchildschildsChild",
"description": "Texttexttext"
}
}]
}, {
"data": {
"title": "FirstchildsSecondchild",
"description": "Texttexttext"
},
"children": [{
"data": {
"title": "FirstchildsSecondchildsChild",
"description": "Texttexttext"
}
}]
}]
}]
}
I have to read the array based on the title text value and list that particular data and its sub data.
For eg. If my input (title value will get from the http URL as follows) is "Firstchild/Firstchildschild/" then I have to list FirstchildschildsChild and its description.
If my input is input is /Firstchild/ then I have to list Firstchildschild & FirstchildsSecondchild data and its sub childs name.
Using jquery how can I fetch records as I mentioned above. Please advise the best way to process this json instead of using lot of loops?
Ok just for these necessities (and believe this is really a big necessity) i had invented an Object method called Object.prototype.getNestedValue() which dynamically fetches you the nested value from deeply nested Objects. All you need to provide is a string for the properties and a number for the array indices in the proper order. OK lets see...
Object.prototype.getNestedValue = function(...a) {
return a.length > 1 ? (this[a[0]] !== void 0 && this[a[0]].getNestedValue(...a.slice(1))) : this[a[0]];
};
var JSONobj = {
"data": {
"title": "MainNode"
},
"children": [{
"data": {
"title": "Firstchild",
"description": "Texttexttext"
},
"children": [{
"data": {
"title": "Firstchildschild",
"description": "Texttexttext"
},
"children": [{
"data": {
"title": "FirstchildschildsChild",
"description": "Texttexttext"
}
}]
}, {
"data": {
"title": "FirstchildsSecondchild",
"description": "Texttexttext"
},
"children": [{
"data": {
"title": "FirstchildsSecondchildsChild",
"description": "Texttexttext"
}
}]
}]
}]
},
value = JSONobj.getNestedValue("children",0,"children",0,"data","title");
console.log(value); // Firstchildschild
var a = "children",
b = 0,
c = "data",
d = "title";
value2 = JSONobj.getNestedValue(...[a,b,a,b,c,d])
console.log(value2); // Firstchildschild
It also has a sister called Object.prototype.setNestedValue().
var obj = jQuery.parseJSON( '
"data": {
"title": "MainNode"
},
"children": [{
"data": {
"title": "Firstchild",
"description": "Texttexttext"
},
"children": [{
"data": {
"title": "Firstchildschild",
"description": "Texttexttext"
},
"children": [{
"data": {
"title": "FirstchildschildsChild",
"description": "Texttexttext"
}
}]
}, {
"data": {
"title": "FirstchildsSecondchild",
"description": "Texttexttext"
},
"children": [{
"data": {
"title": "FirstchildsSecondchildsChild",
"description": "Texttexttext"
}
}]
}]
}]
}' );
alert( obj.name === "data" );
You have to parse the element
obj.name === "data"
in the next link
Related
So I have a bunch of JSON data and it contains a few fields. for example:
[{
"id": "XXX",
"version": 1,
"head": {
"text": "Main title",
"sub": {
"value": "next"
},
"place": "secondary"
},
"body": [{
"id": "XXX1",
"info": "three little birds",
"extended": {
"spl": {
"text": "song",
"type": {
"value": "a"
}
}
}
},
{
"id": "XXX2",
"info": [
"how are you?"
],
"extended": {
"spl": {
"text": "just",
"non-type": {
"value": "abc"
}
}
}
}
]
}]
what I'm trying to do is kind of conversion table (from a different JSON file)
if a field has the value 'a' replace it with 'some other text..' etc.
I have a service for the JSON pipeline, so I guess this is the right place to do the replacement.
so for this example, I have the JSON above and in my conversion table I have the following terms:
next: forward,
song: music,
a: option1,
just: from
etc...
What you are looking for can be achieved with templates. Replace the variable sections with some specific markers that you can find and replace from some external tools such as perl or sed.
For example, you could have a template.json with something like this:
...
"type": {
"value": "##VALUE##"
}
...
Then when you need the actual JSON, you could pass this though an intermediate script that replaces these templates with actual data.
cat template.json | sed -e 's/##VALUE##/my_value/' > target.json
Alternatively, with Perl:
cat template.json | perl -pi -e 's:\#\#VALUE\#\#:my_value:' > target.json
The best way is to parse it, replace the text in the object, and then stringify it.
The next best way is to use a regular expression.
In this example, I catch exceptions if path cannot be indexed, and use ['type'] instead of .type so it will scale to indexing 'non-type' if you wish.
const data = `[{
"id": "XXX",
"version": 1,
"head": {
"text": "Main title",
"sub": {
"value": "next"
},
"place": "secondary"
},
"body": [{
"id": "XXX1",
"info": "three little birds",
"extended": {
"spl": {
"text": "song",
"type": {
"value": "a"
}
}
}
},
{
"id": "XXX2",
"info": [
"how are you?"
],
"extended": {
"spl": {
"text": "just",
"non-type": {
"value": "abc"
}
}
}
}
]
}]
`
const o = JSON.parse(data)
o[0].body.forEach(b => {
try {
if (b.extended.spl['type'].value === 'a') {
b.extended.spl['type'].value = 'CHANGED'
}
} catch (e) {}
})
const newData = JSON.stringify(o, null, 2)
console.log(newData)
A string replace approach will work if you know and can rely on your source conforming, such as the only "value" is inside "type"
const data = `[{
"id": "XXX",
"version": 1,
"head": {
"text": "Main title",
"sub": {
"value": "next"
},
"place": "secondary"
},
"body": [{
"id": "XXX1",
"info": "three little birds",
"extended": {
"spl": {
"text": "song",
"type": {
"value": "a"
}
}
}
},
{
"id": "XXX2",
"info": [
"how are you?"
],
"extended": {
"spl": {
"text": "just",
"non-type": {
"value": "abc"
}
}
}
}
]
}]
`
const newData = data.replace(/"value": "a"/g, '"value": "NEWVALUE"')
console.log(newData)
This question already has answers here:
How can I access and process nested objects, arrays, or JSON?
(31 answers)
Closed 5 years ago.
I have the following json:
{
"menu": [{
"name": "vegetation",
"id": "1",
"children": [
{
"name": "landuse",
"id": "1.1",
"children": [
{
"name": "forest area",
"id": "1.1.1",
"children": null
},
{
"name": "plantation",
"id": "1.1.2",
"children": null
}
]
}
]
}]
}
I want to dynamically access the objects whose value of "children" is null and store the "name" of these objects in a variable. For example in this case either forest area or plantation. How can I do this using javascript or jquery?
You don't need jQuery for this, a simple for will do and, most likely, it's faster than anything else:
var childless = [],
checkForChildren = function(items){
for (var i = 0; i < items.length; i++) {
if (items[i].children)
checkForChildren(items[i].children);
else
childless.push(items[i]);
}
};
// test it:
var menu = [{
"name": "vegetation",
"id": "1",
"children": [{
"name": "landuse",
"id": "1.1",
"children": [{
"name": "forest area",
"id": "1.1.1",
"children": null
},{
"name": "plantation",
"id": "1.1.2",
"children": null
}]
}]
}];
checkForChildren(menu);
console.log(childless);
Recursion comes to mind.
var childless = [];
var recursive_function = function(obj){
if(obj.children == null){
childless.push(obj);
} else {
$.each(obj.children, function(child){
recursive_function(child);
}
}
};
$.each(json_obj.menu, function(root_level){
recursive_function(root_level);
});
console.log(childless);
console.log($.map(childless, function(x){return x.name;}));
var test = {
"menu": [{
"name": "vegetation",
"id": "1",
"children": [{
"name": "landuse",
"id": "1.1",
"children": [{
"name": "forest area",
"id": "1.1.1",
"children": null
},
{
"name": "plantation",
"id": "1.1.2",
"children": null
}
]
}]
}]
};
var hasNullChildren = [];
function checkChildren ( children ) {
//loop over all children
children.forEach(function(child){
//if no children, add name to list
if (!child.children) hasNullChildren.push(child.name);
//check nested children
else checkChildren(child.children);
});
}
//start the recursion loop
checkChildren(test.menu);
console.log(hasNullChildren);
Recursively iterating through the array and searching for the children = null, gives the array with all the names of objects.
const obj = {
"menu": [{
"name": "vegetation",
"id": "1",
"children": [
{
"name": "landuse",
"id": "1.1",
"children": [
{
"name": "forest area",
"id": "1.1.1",
"children": null
},
{
"name": "plantation",
"id": "1.1.2",
"children": null
}
]
},{
"name": "landuse",
"id": "1.1",
"children": null
}
]
}]
}
function getNameWithNullChildren(arr) {
let array = [];
arr.forEach(item => {
if(item.children === null) {
array.push(item.name);
} else {
array = getNameWithNullChildren(item.children);
}
});
return array;
}
console.log(getNameWithNullChildren(obj.menu));
I have nested children in my document i want find document any children._id
my document look like below.
For Example:
I want this children._id "PxX4EYMYVDOphx8XU" how to find this document.
[{
"_id": "v4jdHchuogyumed7f",
"name": "products",
"children": [{
"_id": "fDE1kyR081Y44aO7h",
"name": "Clothes",
"children": [{
"_id": "l464EYMYVDOphx8XU",
"name": "Shoes",
"children": [{
"_id": "PxX4EYMYVDOphx8XU",
"name": "Black Shoes"
}]
}, {
"_id": "gUHcdTuPxXhauIWaZ",
"name": "Shirts"
}]
}, {
"_id": "svcdrpPybHJf0KiBi",
"name": "Flowers",
"children": [{
"_id": "gdEk85byoRCWxStTf",
"name": "Red Flowers"
}]
}]
}]
You need to recursively walk the object and match _id then return the parent object. An example could be.
var walk = returnExports;
var x = [{
"_id": "v4jdHchuogyumed7f",
"name": "products",
"children": [{
"_id": "fDE1kyR081Y44aO7h",
"name": "Clothes",
"children": [{
"_id": "l464EYMYVDOphx8XU",
"name": "Shoes",
"children": [{
"_id": "PxX4EYMYVDOphx8XU",
"name": "Black Shoes"
}]
}, {
"_id": "gUHcdTuPxXhauIWaZ",
"name": "Shirts"
}]
}, {
"_id": "svcdrpPybHJf0KiBi",
"name": "Flowers",
"children": [{
"_id": "gdEk85byoRCWxStTf",
"name": "Red Flowers"
}]
}]
}];
var find = 'PxX4EYMYVDOphx8XU';
var children;
var parent;
walk(x, Object.keys, function(value, prop, object, depth) {
if (prop === 'children' && Array.isArray(value)) {
children = value;
walk.STOP;
}
if (prop === '_id' && value === find) {
parent = children.find(function(obj) {
return object._id === find;
});
return walk.BREAK;
}
});
console.log(parent);
<script src="https://rawgithub.com/Xotic750/object-walk-x/master/lib/object-walk-x.js"></script>
https://www.npmjs.com/package/object-walk-x if you don't want to write your own object walker.
I want to append json data to bring tree view structure. Initially I had created static tree view this is my fiddle code with json tree view: https://jsfiddle.net/ak3zLzgd/6/
Here I have challenges to append three level level json data instead of static html code.
Exactly inside retailer digital marketing > sub-ToI > semi-sub-TOI > super-sub-TOI all the thirditems json array is appending ti first value only . For more info check this fiddle: https://jsfiddle.net/ak3zLzgd/6/
var json = {
"category": [{
"title": "Customer Satisfaction",
"id": "nnanet:category/certified-pre-owned",
"items": [{
"title": "Bulletins",
"id": "nnanet:category/customer-satisfaction/bulletins",
"thirditems": [{
"title": "TOI",
"id": "nnanet:category/retailer-digital-marketing/toi"
}, {
"title": "TOI",
"id": "nnanet:category/retailer-digital-marketing/toi"
}]
}, {
"title": "Consumer Affairs",
"id": "nnanet:category/customer-satisfaction/consumer-affairs"
}, {
"title": "Loyalty",
"id": "nnanet:category/customer-satisfaction/loyalty",
"thirditems": [{
"title": "TOI",
"id": "nnanet:category/retailer-digital-marketing/toi"
}, {
"title": "TOI",
"id": "nnanet:category/retailer-digital-marketing/toi"
}]
}]
}, {
"title": "Retailer Digital Marketing",
"id": "nnanet:category/retailer-digital-marketing",
"items": [{
"title": "TOI",
"id": "nnanet:category/retailer-digital-marketing/toi",
"thirditems": [{
"title": "TOI",
"id": "nnanet:category/retailer-digital-marketing/toi"
}, {
"title": "TOI",
"id": "nnanet:category/retailer-digital-marketing/toi"
}]
}, {
"title": "Basics",
"id": "nnanet:category/retailer-digital-marketing/reference-guide/basics"
}, {
"title": "International",
"id": "nnanet:category/retailer-digital-marketing/international"
}]
}, {
"title": "Finance Today",
"id": "nnanet:category/customer-satisfaction/bulletins/finance-today",
"items": [{
"title": "TOI",
"id": "nnanet:category/retailer-digital-marketing/toi",
"thirditems": [{
"title": "TOI",
"id": "nnanet:category/retailer-digital-marketing/toi"
}, {
"title": "TOI",
"id": "nnanet:category/retailer-digital-marketing/toi"
}]
}, {
"title": "Basics",
"id": "nnanet:category/retailer-digital-marketing/reference-guide/basics"
}, {
"title": "International",
"id": "nnanet:category/retailer-digital-marketing/international"
}]
}, {
"title": "Annual",
"id": "nnanet:category/customer-satisfaction/bulletins/finance-today/revenue/annual",
"items": [{
"title": "TOI",
"id": "nnanet:category/retailer-digital-marketing/toi"
}, {
"title": "Basics",
"id": "nnanet:category/retailer-digital-marketing/reference-guide/basics"
}, {
"title": "International",
"id": "nnanet:category/retailer-digital-marketing/international"
}]
}]
};
function expander(){
var tree = document.querySelectorAll('ul.tree a:not(:last-child)');
for(var i = 0; i < tree.length; i++){
tree[i].addEventListener('click', function(e) {
var element = e.target.parentElement; //actually this is just the elem itself
var parent = element.parentElement
var opensubs = parent.querySelectorAll(':scope .open');
console.log(opensubs);
var classList = element.classList;
if(opensubs.length !=0) {
for(var i = 0; i < opensubs.length; i++){
opensubs[i].classList.remove('open');
}
}
classList.add('open');
});
}
}
$(function(){
var tree = $("ul.tree");
$.each(json.category,function(category){
var categoryValue = json.category[category];
tree.append('<li>'+categoryValue.title+'<ul></ul></li>');
var el = tree.children("li").children("ul");
$.each(categoryValue.items,function(itemId){
var item = categoryValue.items[itemId];
$(el[category]).append('<li>'+item.title+'</li>');
if(item.thirditems){
$(el[category]).children("li").append('<ul></ul>');
var el1 = el.children("li").children("ul");
$.each(item.thirditems,function(thirdItemId){
var thirdItem = item.thirditems[thirdItemId];
console.log(el1[itemId]);
$(el1[itemId]).append('<li>'+thirdItem.title+'<ul></ul></li>');
});
}
});
});
expander();
});
Output : check this fiddle : https://jsfiddle.net/ak3zLzgd/6/
I'm trying to use the jQuery UI Autocomplete widget with a custom JSON feed I'm getting back from an API, which is formatted as follows:
{
"SearchTerm": "ches",
"HasDirectCountyHit": false,
"DirectCountyHitId": null,
"HasDirectLocationHit": false,
"DirectLocationHitId": null,
"Developments": [
{
"Id": "45339ae3e55a",
"Label": "Chestnut Walk, Bilston",
"Url": "/developments/chestnut-walk-bilston"
},
{
"Id": "4835f52e053a",
"Label": "Crown Park, Chester",
"Url": "/developments/crown-park-chester"
},
{
"Id": "757964964cc6",
"Label": "The Birches, West Timperley",
"Url": "/developments/the-birches-west-timperley"
}
],
"Counties": [
{
"Id": "7",
"Label": "Cheshire",
"Url": "/search?cid=7"
},
{
"Id": "24",
"Label": "Greater Manchester",
"Url": "/search?cid=24"
}
],
"Locations": [
{
"Id": "12061",
"Label": "Cheselbourne, Dorset (DT2 7)",
"Url": "/search?lid=12061"
},
{
"Id": "12062",
"Label": "Chesham, Buckinghamshire (HP5 1)",
"Url": "/search?lid=12062"
},
{
"Id": "12063",
"Label": "Chesham, Greater Manchester (BL9 6)",
"Url": "/search?lid=12063"
},
{
"Id": "12064",
"Label": "Chesham Bois, Buckinghamshire (HP6 5)",
"Url": "/search?lid=12064"
},
{
"Id": "12065",
"Label": "Cheshunt, Hertfordshire (EN8 9)",
"Url": "/search?lid=12065"
},
{
"Id": "12066",
"Label": "Chesley, Kent (ME9 7)",
"Url": "/search?lid=12066"
},
{
"Id": "12067",
"Label": "Cheslyn Hay, Staffordshire (WS6 7)",
"Url": "/search?lid=12067"
},
{
"Id": "12068",
"Label": "Chessetts Wood, Warwickshire (B94 6)",
"Url": "/search?lid=12068"
},
{
"Id": "12069",
"Label": "Chessington, Kingston upon Thames - Greater London (KT9 2)",
"Url": "/search?lid=12069"
},
{
"Id": "12070",
"Label": "Chessmount, Buckinghamshire (HP5 1)",
"Url": "/search?lid=12070"
}
]
}
The API I'm calling returns results based on my search term, so I know that all of the results in the nested objects are matches - my problem is how to access these objects ('Developments', 'Counties' and 'Locations') so that the autocomplete widget can pick up the 'Label' values?
Thanks,
Robin
Ok - here's what you can do:
//put all the keys you want to pull out of your json in an array
var props = [
"Locations", "Counties", "Developments"
];
//empty array for your autocomplete
var labels = [];
//loop thru all the properties you care about
$.each(props, function () {
$.each(source[this], function () {
//and pull out all the labels and add them to the labels array
labels.push(this.Label)
});
});
$("#autocomplete").autocomplete({
source: labels
});
and to see it all in action I created a quick fiddle
http://jsfiddle.net/fr5yb3n0/