Question 269475 in Jquery Question posted in
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Jquery – How to use for each function inside a for loop

I have created a price list and would like to display the prices together underneath each product based on each sku value.

I have an array of data which is looped through and then pushed into the div.

var arr = [
  {
"sku": "552",
"title": "orange",
"price": "1.55",
"per": 1
  },
  {
"sku": "552",
"title": "orange",
"price": "2.00",
"per": 2
  },
  {
"sku": "552",
"title": "orange",
"price": "3.50",
"per": 4
  },
  {
"sku": "551",
"title": "bannana",
"price": "0.95",
"per": 1
  },
  {
"sku": "551",
"title": "bannana",
"price": "2.20",
"per": 3
  },
  {
"sku": "544",
"title": "apple",
"price": "0.70",
"per": 1
  },
  {
"sku": "501",
"title": "pear",
"price": "1.15",
"per": 1
  }
];

            
for(var i=0; i<arr.length; i++){

  var sku = arr[i].sku;
  var title = arr[i].title;
  var price = arr[i].price;
  var per = arr[i].per;

  var html = "<p>" + sku + " - " + title + "</p>";
  html +=   "<p><b>" + per + "</b> - " + price + "</p>";                    

  $("#div_1").append(html);

}
<script src="https://code.jquery.com/jquery-3.7.1.min.js"></script>
<div id="div_1"></div>

I think I need to use the for each function…I have tried used a jquery foreach function inside the for loop but ended up with strange results.

for(var i=0; i<arr.length; i++){

  var sku = arr[i].sku;
  var title = arr[i].title;
  var price = arr[i].price;
  var per = arr[i].per;

  var html = "<p>" + sku + " - " + title + "</p>";
  
  $.each(arr, function(key, value) {
  html +=   "<p><b>" + per + "</b> - " + price + "</p>";
});
                        

  $("#div_1").append(html);

}

https://jsfiddle.net/amxkwgy9/

Tags:

2

Answers


  1. 0

    If you are new to web development, I would recommend you to use a simple templating engine like mustache, that would make your life easy 🙂 Link https://github.com/janl/mustache.js/

    Looking at your input it looks like you need the right data coming from the backend API resonse itself.

    But since you already have the input you should be able to solve the problem with a groupby functionality, in that case you can use JS reduce by title. https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/Reduce

    Here is an example:

    const result = products.reduce((x, y) => {
  (x[y.title] = x[y.title] || []).push(y);
    return x;
}, {});

    https://jsfiddle.net/k1smzcnv/1/

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  2. 0

    first group by SKU using groupedData then,iterate the arr array and add each product.

    https://jsfiddle.net/grsn27hk/

     var groupedData = {};

        // Group the data by SKU
        for (var i = 0; i < arr.length; i++) {
            var sku = arr[i].sku;

            if (!groupedData[sku]) {
                groupedData[sku] = [];
            }

            groupedData[sku].push(arr[i]);
        }

        // Display the grouped data
        for (var sku in groupedData) {
            if (groupedData.hasOwnProperty(sku)) {
                var products = groupedData[sku];
                var skuTitle = products[0].sku + " - " + products[0].title;

                var html = "<p>" + skuTitle + "</p>";

                for (var j = 0; j < products.length; j++) {
                    var product = products[j];
                    html += "<p><b>" + product.per + "</b> - " + product.price + "</p>";
                }

                $("#div_1").append(html);
            }
        }
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