How to pull values from JSON string into list items using JavaScript

Question

How can i pull the "Toppings" Values from my JSON string into my list items? Thanks for your help!

<html>
<body>

<section>
<h2>Toppings</h2>
<ul>
    <li>JSON String Value </li>
    <li>JSON String Value </li>
    <li>JSON String Value </li>
    <li>JSON String Value</li>
</ul>
</section>

     </body>
<script>
var myObj ={"menu": {"slice of pizza": "2.00", "toppings": {"pepperoni": ".25","meatballs": ".35", "mushrooms": ".40","olives": ".20"},"sides": {"potato salad": "1.25","hummus": "2.50","caesar salad": "3.50","garden salad": "2.25"},   "drinks": { "soda": {   "small": "1.95",  "medium": "2.20","large": "2.50" }, "juice": "2.00", "water": "1.25"}}};
var myJSON = JSON.stringify(myObj);
</script>

</html>

Please include attempted solutions, why they didn't work, and the expected results. That would really help us to figure out the issue with your code. — palaѕн
– palaѕн, Commented Mar 6, 2018 at 15:27

QaMar ALi · Accepted Answer · 2018-03-06 15:36:46Z

1

Here goes your code solution

use this code

<html>
<body>

<section>
<h2>Toppings</h2>
<ul id="serveJson">
</ul>
</section>

     </body>
<script>
var myObj ={"menu": {"slice of pizza": "2.00", "toppings": {"pepperoni": ".25","meatballs": ".35", "mushrooms": ".40","olives": ".20"},"sides": {"potato salad": "1.25","hummus": "2.50","caesar salad": "3.50","garden salad": "2.25"},   "drinks": { "soda": {   "small": "1.95",  "medium": "2.20","large": "2.50" }, "juice": "2.00", "water": "1.25"}}};

var toppings = myObj.menu.toppings;

var ul = document.getElementById('serveJson');
for(name in toppings)
{
    var li = document.createElement('li');
    li.appendChild( document.createTextNode(toppings[name]) );
    ul.appendChild(li);
}

</script>

</html>

answered Mar 6, 2018 at 15:36

QaMar ALi

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Comments

Ryan Wilson · Accepted Answer · 2018-03-06 15:43:21Z

1

Use Object.Keys to grab the keys of Toppings, then iterate those with a forEach to then populate your unlinked list with list items like so, this is assuming you give your ul node an id property:

let myToppings = Object.Keys(myObj.menu.toppings);
let myUl = document.getElementById("yourUlId");

myToppings.forEach(function(key) {
       let liItem = document.createElement("LI");
       let textnode = document.createTextNode(key); 
       liItem.appendChild(textnode);
       myUl.appendChild(liItem);
});

answered Mar 6, 2018 at 15:43

Ryan Wilson

10.9k3 gold badges23 silver badges46 bronze badges

Comments

Mamun · Accepted Answer · 2018-03-06 16:07:39Z

Assume you have already li defined. Then you can try the following way:

var myObj ={"menu": {"slice of pizza": "2.00", "toppings": {"pepperoni": ".25","meatballs": ".35", "mushrooms": ".40","olives": ".20"},"sides": {"potato salad": "1.25","hummus": "2.50","caesar salad": "3.50","garden salad": "2.25"},   "drinks": { "soda": {   "small": "1.95",  "medium": "2.20","large": "2.50" }, "juice": "2.00", "water": "1.25"}}};

var myJSON = Object.keys(myObj.menu.toppings);
var allLI = document.querySelectorAll('ul > li');
allLI.forEach(function(li, i){
  li.textContent = myJSON[i] + ': ' + myObj.menu.toppings[myJSON[i]];
});

<section>
<h2>Toppings</h2>
<ul>
    <li>JSON String Value </li>
    <li>JSON String Value </li>
    <li>JSON String Value </li>
    <li>JSON String Value</li>
</ul>
</section>

Euler Ribeiro Sudbrack · Accepted Answer · 2018-03-06 16:30:37Z

My solution :)

var ul = document.getElementsByTagName('ul')[0]; //Get the <ul> to append toppings
var myObj ={"menu": {"slice of pizza": "2.00", "toppings": {"pepperoni": ".25","meatballs": ".35", "mushrooms": ".40","olives": ".20"},"sides": {"potato salad": "1.25","hummus": "2.50","caesar salad": "3.50","garden salad": "2.25"},   "drinks": { "soda": {   "small": "1.95",  "medium": "2.20","large": "2.50" }, "juice": "2.00", "water": "1.25"}}};

Object.keys(myObj.menu.toppings).forEach((key) => { //for each topping create a new li and append to the ul
    var li = document.createElement('li');
    li.innerText = `${key}: ${myObj.menu.toppings[key]}`;
    ul.append(li);
});

Result:

<ul>
    <li>pepperoni: .25</li>
    <li>meatballs: .35</li>
    <li>mushrooms: .40</li>
    <li>olives: .20</li>
</ul>

user9447551 · Accepted Answer · 2018-03-07 08:15:58Z

0

Try this

<!DOCTYPE html>
    <html>
    <body>

    <h2>Convert a JavaScript object into a JSON string, and send it to the server.</h2>

    <script>

    var myObj = {"menu": {"slice of pizza": "2.00", "toppings": {"pepperoni": ".25","meatballs": ".35", "mushrooms": ".40","olives": ".20"},"sides": {"potato salad": "1.25","hummus": "2.50","caesar salad": "3.50","garden salad": "2.25"},   "drinks": { "soda": {   "small": "1.95",  "medium": "2.20","large": "2.50" }, "juice": "2.00", "water": "1.25"}}};
    var myj=JSON.parse(JSON.stringify(myObj));
    console.log(myj.menu.toppings);


    </script>

    </body>
    </html>

answered Mar 7, 2018 at 8:15

user9447551

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