display json data in html table using javascript dynamically

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18 May 2017

1<!DOCTYPE html>
2<html>
3<head>
4    <title>Convert JSON Data to HTML Table</title>
5    <style>
6        th, td, p, input {
7            font:14px Verdana;
8        }
9        table, th, td 
10        {
11            border: solid 1px #DDD;
12            border-collapse: collapse;
13            padding: 2px 3px;
14            text-align: center;
15        }
16        th {
17            font-weight:bold;
18        }
19    </style>
20</head>
21<body>
22    <input type="button" onclick="CreateTableFromJSON()" value="Create Table From JSON" />
23    <p id="showData"></p>
24</body>
25
26<script>
27    function CreateTableFromJSON() {
28        var myBooks = [
29            {
30                "Book ID": "1",
31                "Book Name": "Computer Architecture",
32                "Category": "Computers",
33                "Price": "125.60"
34            },
35            {
36                "Book ID": "2",
37                "Book Name": "Asp.Net 4 Blue Book",
38                "Category": "Programming",
39                "Price": "56.00"
40            },
41            {
42                "Book ID": "3",
43                "Book Name": "Popular Science",
44                "Category": "Science",
45                "Price": "210.40"
46            }
47        ]
48
49        // EXTRACT VALUE FOR HTML HEADER. 
50        // ('Book ID', 'Book Name', 'Category' and 'Price')
51        var col = [];
52        for (var i = 0; i < myBooks.length; i++) {
53            for (var key in myBooks[i]) {
54                if (col.indexOf(key) === -1) {
55                    col.push(key);
56                }
57            }
58        }
59
60        // CREATE DYNAMIC TABLE.
61        var table = document.createElement("table");
62
63        // CREATE HTML TABLE HEADER ROW USING THE EXTRACTED HEADERS ABOVE.
64
65        var tr = table.insertRow(-1);                   // TABLE ROW.
66
67        for (var i = 0; i < col.length; i++) {
68            var th = document.createElement("th");      // TABLE HEADER.
69            th.innerHTML = col[i];
70            tr.appendChild(th);
71        }
72
73        // ADD JSON DATA TO THE TABLE AS ROWS.
74        for (var i = 0; i < myBooks.length; i++) {
75
76            tr = table.insertRow(-1);
77
78            for (var j = 0; j < col.length; j++) {
79                var tabCell = tr.insertCell(-1);
80                tabCell.innerHTML = myBooks[i][col[j]];
81            }
82        }
83
84        // FINALLY ADD THE NEWLY CREATED TABLE WITH JSON DATA TO A CONTAINER.
85        var divContainer = document.getElementById("showData");
86        divContainer.innerHTML = "";
87        divContainer.appendChild(table);
88    }
89</script>
90</html>

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