Develop Reference

data from local storage is not appended and replaced

Objects are being saved into localstorage and I want to retrieve that object and append to the page, also I want to change key name everytime new form is submitted, so at first key = key and then on next form submit I want key = key1 etc.
However I do not know how to achieve that, can someone help me?
var existingData = JSON.parse(localStorage.getItem("key")) || [];
$('body').append(existingData);
$('form').submit(function() {
var newArray = [];
$(".add_id2").each(function(){
newArray.push($(this).val());
});
var newArray2 = [];
$(".add_id").each(function(){
newArray2.push($(this).val());
});
var newData = {
'title': $("#title").val(),
'ingredients': $("#ingredients").val(),
'instructions': $("#inst").val(),
'moreingredients': newArray,
'moreinstruction': newArray2,
'img': img,
};
existingData.push(newData);
localStorage.setItem("key", JSON.stringify(existingData));

You can make the constructor function and call that with the new keyword...Please have a look at this. Hope this will help you.
Example:-
function formData(title, ingredients, instructions, moreingredients, img) {
this.title = title;
this.ingredients = ingredients;
this.instructions = instructions;
this.moreingredients = moreingredients;
this.img = img;
}
var newData = new formData($("#title").val(), $("#ingredients").val(), $("#inst").val(), newArray, newArray2);

How to read JSON Response from URL and use the keys and values inside Javascript (array inside array)

My Controller Function:
public function displayAction(Request $request)
{
$stat = $this->get("app_bundle.helper.display_helper");
$displayData = $stat->generateStat();
return new JsonResponse($displayData);
}
My JSON Response from URL is:
{"Total":[{"date":"2016-11-28","selfies":8},{"date":"2016-11-29","selfies":5}],"Shared":[{"date":"2016-11-28","shares":5},{"date":"2016-11-29","shares":2}]}
From this Response I want to pass the values to variables (selfie,shared) in javascript file like:
$(document).ready(function(){
var selfie = [
[(2016-11-28),8], [(2016-11-29),5]]
];
var shared = [
[(2016-11-28),5], [(2016-11-29),2]]
];
});

You can try like this.
First traverse the top object data and then traverse each property of the data which is an array.
var data = {"total":[{"date":"2016-11-28","selfies":0},{"date":"2016-11-29","selfies":2},{"date":"2016-11-30","selfies":0},{"date":"2016-12-01","selfies":0},{"date":"2016-12-02","selfies":0},{"date":"2016-12-03","selfies":0},{"date":"2016-12-04","selfies":0}],"shared":[{"date":"2016-11-28","shares":0},{"date":"2016-11-29","shares":0},{"date":"2016-11-30","shares":0},{"date":"2016-12-01","shares":0},{"date":"2016-12-02","shares":0},{"date":"2016-12-03","shares":0},{"date":"2016-12-04","shares":0}]}
Object.keys(data).forEach(function(k){
var val = data[k];
val.forEach(function(element) {
console.log(element.date);
console.log(element.selfies != undefined ? element.selfies : element.shares );
});
});

Inside your callback use the following:
$.each(data.total, function(i, o){
console.log(o.selfies);
console.log(o.date);
// or do whatever you want here
})
Because you make the request using jetJSON the parameter data sent to the callback is already an object so you don't need to parse the response.

Try this :
var text ='{"Total":[{"date":"2016-11-28","selfies":0},{"date":"2016-11-29","selfies":2}],"Shared":[{"date":"2016-11-28","shares":0},{"date":"2016-11-29","shares":0}]}';
var jsonObj = JSON.parse(text);
var objKeys = Object.keys(jsonObj);
for (var i in objKeys) {
var totalSharedObj = jsonObj[objKeys[i]];
if(objKeys[i] == 'Total') {
for (var j in totalSharedObj) {
document.getElementById("demo").innerHTML +=
"selfies on "+totalSharedObj[j].date+":"+totalSharedObj[j].selfies+"<br>";
}
}
if(objKeys[i] == 'Shared') {
for (var k in totalSharedObj) {
document.getElementById("demo").innerHTML +=
"shares on "+totalSharedObj[k].date+":"+totalSharedObj[k].shares+"<br>";
}
}
}
<div id="demo">
</div>

I did a lot of Research & took help from other users and could finally fix my problem. So thought of sharing my solution.
$.get( "Address for my JSON data", function( data ) {
var selfie =[];
$(data.Total).each(function(){
var tmp = [
this.date,
this.selfies
];
selfie.push(tmp);
});
var shared =[];
$(data.Shared).each(function(){
var tmp = [
this.date,
this.shares
];
shared.push(tmp);
});
});

Javascript: creating dynamic variables and object names. / html5 localstorage

I'm working on a form that is saved by HTML5 local storage.
When pressing save:
function saveAll(){
var field1 = document.getElementById('field1').value;
localStorage.setItem('con_field1',field1);
var field2 = document.getElementById('field2').value;
localStorage.setItem('con_field2',field2);
var field3 = document.getElementById('field3').value;
localStorage.setItem('con_field3',field3);
var field4 = document.getElementById('field4').value;
localStorage.setItem('con_field4',field4);
var field5 = document.getElementById('field5').value;
localStorage.setItem('con_field5',field5);
var field6 = document.getElementById('field6').value;
localStorage.setItem('con_field6',field6);
}
And when loading the page (fills out the forms):
function ShowAll() {
var field1 = localStorage.getItem('con_field1');
document.conditioning.field1.value = field1;
var field2 = localStorage.getItem('con_field2');
document.conditioning.field2.value = field2;
var field3 = localStorage.getItem('con_field3');
document.conditioning.field3.value = field3;
var field4 = localStorage.getItem('con_field4');
document.conditioning.field4.value = field4;
var field5 = localStorage.getItem('con_field5');
document.conditioning.field5.value = field5;
var field6 = localStorage.getItem('con_field6');
document.conditioning.field6.value = field6;
}
This all works fine, but I want to re-write this in a more fancy and efficient way. I was thinking of something like this:
function ShowAll() {
var field = [];
for (i=0; i<6; i++) {
field[i] = localStorage.getItem(window['con_field' + i]);
document.purpose.field[i].value = window['con_field' + i]
}
}
But the browser is not enjoying this. Basically I need to create a loop that automatically changes the "field" name in to 'field1, field2, field3' etc. The window thing is working, but I'm just using it wrong.
Anyone has an idea?
Thanks a lot!

function showAll(t1,c1,d1) {
var field1 = localStorage.getItem('con_field1');
console.log(field1)
var field2 = localStorage.getItem('con_field2');
var field3 = localStorage.getItem('con_field3');
}

You should add all of your data to one object, stringify it, then add that to local storage under a single key.
When you load it, grab the one local storage item, parse it, then access the properties on the object.
e.g.
var save = function () {
var data = {
foo: 'bar'
};
localStorage.setItem('myData', JSON.stringify(data));
};
var load = function () {
var data = JSON.parse(localStorage.getItem('myData'));
var someProp = data.foo; // gives you 'bar'
};

It looks like your main problem is that the fields are indexed beginning with 1, but your loop indexes from 0.
What about this?
var field = [];
for (i = 1; i <= 6; i++)
{
field[i] = localStorage.getItem(window['con_field' + i]);
document.purpose.field[i].value = window['con_field' + i]
}
Also, I'm not 100% on this, but I think using document.getElementByID is more cross-browser compatible than using bracket notation on the window object, but it's been a while since I wrote plain vanilla JS, so don't quote me.

I would try document.purpose["field" + i].value = window['con_field' + i].

How to access content in an object literal?

Can someone tell me what the best way is to store content in an object literal and how to access it using my JS pattern? I can't seem to get it to work.
Namespace.object = {
var data = [{"myid1" : "<p>My content 1</p>"}];
method: function () {
var myData = Namespace.object.data[0].id;
}
};

To store:
Namespace.object = {
data: [{"myid1" : "<p>My content 1</p>"}],
method: function () {
var myData = Namespace.object.data[0].id;
}
};
To access:
var theFirstData = Namespace.object.data[0];
var myId1 = Namespace.object.data[0].myid1;
// Alternatively...
var myId1b = Namespace.object.data[0]['myid1'];
Namespace.object.method();

Appcelerator/Javascript Using Variable as Routine Syntax Question

Really a javascript question, but here's my code........I would truly appreciate some help. Been too long since I've been in the coding trenches. Here's my code.
I want to make loadtravelurl into a single function I can call from multiple places.
These three lines below are my issues.
win2.title = title;
win2.add(tv);
tab2.open(webwin);
I want to be able to pass variables in loadelectronicsurl function, where I can change the text win2 in win2.title and win2.add(tv) dynamically. Also want to do the same with tab2. I know it can be done, just had a few years off and forgot how to do so in javascript.
Here is the full code, thanks so much for the help in advance!
function loadelectronicsurl(){
var WindowWidth = Ti.Platform.displayCaps.platformWidth;
var WindowHeight = Ti.Platform.displayCaps.platformHeight;
var xhr = Titanium.Network.createHTTPClient();
xhr.open('GET',electronicsurl);
var data = [];
var WindowWidth = Ti.Platform.displayCaps.platformWidth;
xhr.onload = function() {
//Ti.API.info(this.responseText);
var xml = this.responseXML;
var channel = xml.documentElement.getElementsByTagName("channel");
var title = channel.item(0).getElementsByTagName("title").item(0).text;
win2.title = title;
var items = xml.documentElement.getElementsByTagName("item");
for (var i=0;i<items.length;i++) {
var this_post_title = items.item(i).getElementsByTagName("title").item(0).text;
var post_link = items.item(i).getElementsByTagName("link").item(0).text;
var row = Ti.UI.createTableViewRow({height:'auto',width:WindowWidth,top:0,hasChild: false});
var post_title = Ti.UI.createLabel({
text: this_post_title,
textAlign:'left',
left:0,
height:40,
font:{fontFamily:'Arial',fontSize:12},
width:'auto',
top:3,
color: 'black'
});
row.add(post_title);
row.link = post_link;
data.push(row);
}
var tv = Titanium.UI.createTableView({
data:data,
top:0,
width:WindowWidth,
height:WindowHeight
});
win2.add(tv);
tv.addEventListener('click',function(e) {
var webwin = Titanium.UI.createWindow({
url: 'showweb.js',
backgroundColor: '#fff',
myurl: e.rowData.link
});
tab2.open(webwin);
});
};
xhr.send();
}

You can define parameters for a function like this:
function someFunc(win, tab){
win.add();
tab.open();
}
You can also use the parameters to access properties of an object dynamically like this:
function someFunc(win, tab){
obj.[win](); //To call an object's method
obj.[tab]; //To access an object's property
}
Call the function and pass the paramters:
someFunc(someObject, anotherObject);
someObject becomes win and anotherObject becomes tab inside the function.