I have a code as a shown below in which I am not sure how to do referencing.
<p id="demo" ></p>
<p id="options"></p>
<script>
var myObj, myJSON, text, obj;
myObj = {
"quiz": {
"sport": {
"q1": {
"question": "Which one is correct team name in NBA?",
"options": [
"New York Bulls",
"Los Angeles Kings",
"Golden State Warriros",
"Huston Rocket"
],
"answer": "Huston Rocket"
}
},
"maths": {
"q1": {
"question": "5 + 7 = ?",
"options": [
"10",
"11",
"12",
"13"
],
"answer": "12"
}
}
}
}
//Storing data:
// converting JS object into String
myJSON = JSON.stringify(myObj);
localStorage.setItem("testJSON", myJSON);
//Retrieving data:
text = localStorage.getItem("testJSON");
//converting String into JS object
obj = JSON.parse(text);
document.getElementById("demo").innerHTML = // code
Problem Statement:
I am wondering what changes should I make in the below line(which is the last line in the above code) so that the output should be Huston Rocket.
document.getElementById("demo").innerHTML = // code
I tried in the following way but somehow I am not able to reach Huston Rocket
document.getElementById("demo").innerHTML = myObj.quiz.sport.q1.answer;
You are using incorrect name, after Json parsing, your Json object is 'obj'
So use it as
document.getElementById("demo").innerHTML = obj.quiz.sport.q1.answer;
Related
when i try to put json fetched object from console to html i get error saying object in html
i fetched object from url to console but when i try to put in h1 or p it gets an error, i know i miss something just dont know what
var questionP = document.getElementById("question");
var ourRequest = new XMLHttpRequest();
ourRequest.open('GET', 'quiz.json');
ourRequest.onload = function(){
var ourData = JSON.parse(ourRequest.responseText);
document.getElementById('question').innerHTML=ourData.quiz.q1;'
};
ourRequest.send();
{
"quiz": {
"q1": {
"question": "Which one is correct team name in NBA?",
"options": [
"New York Bulls",
"Los Angeles Kings",
"Golden State Warriros",
"Huston Rocket"
],
"answer": "Huston Rocket"
},
"q2": {
"question": "'Namaste' is a traditional greeting in which Asian language?",
"options": [
"Hindi",
"Mandarin",
"Nepalese",
"Thai"
],
"answer": "Hindi"
}}}
{
"data": [
{
"id": "52fb62dc-a446-4fbb-9c7e-e75d8c90f6d9",
"name": "abx",
"address": {
"address1": "New Address 1",
"address2": "New Address 2",
"Pin":"800001"
}
},
{
"id": "52fb62dc-a446-4fbb-9c7e-e75d8c90f6d9",
"name": "xyz",
"address": {
"address1": "New Address 1",
"address2": "New Address 2",
"Pin":"800002"
}
},
{
"id": "52fb62dc-a446-4fbb-9c7e-e75d8c90f6d9",
"name": "ijk",
"address": {
"address1": "New Address 1",
"address2": "New Address 2",
"Pin":"800003"
}
}
]
}
Out put json should be like this
[
{
"name": "abx",
"Pin": "800001"
},
{
"name": "xyz",
"Pin": "800002"
},
{
"name": "ijk",
"Pin": "800003"
}
]
From the input json, I want to extract all values using
jpath
Name Path = "data.name"
Pin Path = "data.address.pin"
I need all values, I will create an output json.
If both json and jpath are dynamic then try using the below code, here i have used the same input json and output json in my code block.
$(document).ready(function () {
var outputArr = [];
//Assume that these jpaths are dynamic.
var name = "data.name", pin = "data.address.Pin";
//Assigned input json object to sampleData variable.
$.each(sampleData.data, function (item, value) {
//Replacing 'data.' with empty('') as we are looping through data array.
var nameValue = extractValue(value, name.replace('data.', ''));
var pinValue = extractValue(value, pin.replace('data.', ''));
outputArr.push({ 'name': nameValue, 'Pin': pinValue });
});
//logging into console for testing purpose.
console.log(outputArr);
--to do with outputArr --
//Recursive function that returns the required value from the json
function extractValue(value, jPathKey) {
if (jPathKey.split(".").length > 1) {
//Here use of replace function is must as we need to get the object with the mentioned jPathKey to loop further.
return extractValue(value[jPathKey.replace('.', '$').split('$')[0]], jPathKey.replace('.', '$').split('$')[1])
}
else {
return value[jPathKey];
}
}
});
Note: Here only thing that need to take care is the case of jpath should match with case of input json
Lets say I have the following JSON :-
{
"book": [
{
"id": "01",
"language": "Java",
"edition": "third",
"author": "Herbert Schildt"
},
{
"id": "07",
"language": "C++",
"edition": "second",
"author": "E.Balagurusamy"
}
]
}
And, I am passing the value of author from excel sheet to check if that author is present or not. If that author is present inside JSON, then that that particular array node only and remove other from the JSON.
For Example:- I am passing "author" value as "Herbert Schildt" from excel sheet. Now this value is present inside JSON, So, I need this particular array node to be printed and rest all should be removed. Like this:-
{
"book": [
{
"id": "01",
"language": "Java",
"edition": "third",
"author": "Herbert Schildt"
}
]
}
Can it be done using groovy? I have tried with HashMap but couldn't get through.
It's quite easy using groovy:
def text = '''{
"book": [
{
"id": "01",
"language": "Java",
"edition": "third",
"author": "Herbert Schildt"
},
{
"id": "07",
"language": "C++",
"edition": "second",
"author": "E.Balagurusamy"
}
]
}
'''
def result = groovy.json.JsonOutput.toJson(
[book: new groovy.json.JsonSlurper().parseText(text).book.findAll{it.author == "Herbert Schildt"}]
)
println result
You may try this ways json search
var json = '{"book":[{"id":"01","language":"Java","edition":"third","author":"Herbert Schildt"},{"id":"07","language":"C++","edition":"second","author":"E.Balagurusamy"}]}';
var parsed = JSON.parse(json);
var result = {};
result.book = [];
var author = "Herbert Schildt";
parsed.book.map((i, j) => {
if(i.author == author) {
result.book.push(i);
}
});
console.log(result)
I have this array
["123", "456", "789", "0"]
And I would like to build a JSON out of its values.
Expected result is
{
"list": [
{
"code": 123
},
{
"code": 456
},
{
"code": 789
},
{
"code": 0
}
]
}
How do I work this structure in javascript? Thank u for the help
You will have to create a loop and a JS variable that writes it that way then JSON.Stringify it out once complete.... I.e.
var json = { list: [] };
for(i = 0 ; i < arr.length ; i++) {
json.list.push( { code : arr[i] } );
}
var stringOutput = JSON.Stringify(json)
Note: not tried to compile or run the code but that should be close to what you want.
As a one-liner you can do the following:
let result = {"list": ["123", "456", "789", "0"].map((code) => { return {"code":code} })};
Or to break out the steps and to use older syntax:
var orig = ["123", "456", "789", "0"];
var list = orig.map(function(code) {
return {"code": code};
});
var result = {"list": list};
I am new to AngularJS and trying to create a $scope for tracks for later usage
data.json (sample):
[
{
"album": "Album name",
"tracks": [
{
"id": "1",
"title": "songtitle1",
"lyric": "lyrics1"
},
{
"id": "2",
"title": "songtitle2",
"lyric": "lyrics2"
}
]
}
]
Controller
app.controller('lyricsCtrl', function($scope, $http) {
$http.get('data.json')
.then(function(result) {
$scope.albums = result.data;
$scope.tracks = result.data.tracks;
console.log($scope.tracks); //Undefined...
});
});
Why is $scope.tracks undefined?
If your json file is as is:
[
{
"album": "Album name",
"tracks": [
{
"id": "1",
"title": "songtitle1",
"lyric": "lyrics1"
},
{
"id": "2",
"title": "songtitle2",
"lyric": "lyrics2"
}
]
}
]
We have a response of:
data: Array[1]
0: Object
album: "Album name"
tracks: Array[2]
Since data is returned as an array you would handle like any other javascript array and access by index, so you could do a loop or if you know only 1 result is going to be returned you could use the zero index:
$http.get('data.json').then(function(result) {
console.log(result);
// Assign variables
$scope.album = result.data[0].album;
$scope.tracks = result.data[0].tracks;
for (var i = 0, l = $scope.tracks.length; i < l; i++) {
console.log($scope.tracks[i].title);
}
});
result.data is an array,So you must have to use index to access its child like:-
$scope.tracks = result.data[0].tracks;
It should be result.data[0].tracks as data is an array
$scope.tracks = result.data[0].tracks;