Here is the code to see the array structure using alert() . Here below few techniques
are discussed
Approach 1:
- First take the values in a variable(lets arr).
- Pass the array name in the alert() .
- We can directly use the array name because arrayName automatically converted to arrayName.toString()
Example 1: This example follows the approach discussed above.
<!DOCTYPE HTML> <html>   <head>     <title>         How to get array structure         with alert() in JavaScript?     </title> </head>   <body style="text-align:center;" id="body">     <h1 style="color:green;">             GeeksForGeeks     </h1>         <p id="GFG_UP" style="font-size: 15px; font-weight: bold;">     </p>         <button onclick="gfg_Run()">         Click here     </button>         <script>         var el_up = document.getElementById("GFG_UP");         var arr = [1, 2, 4, 6, 9];         el_up.innerHTML = "Click on the button to see the array structure using Alert().<br> Array is = "         + arr;           function gfg_Run() {             alert(arr);         }     </script> </body>   </html> |
Output:
-
Before clicking on the button:
-
After clicking on the button:
Approach 2:
- First take the values in a variable(lets arr).
- Pass the array name in the alert() .
- We can use .join() method for our simplicity to see the array elements each in a line.
Example 2: This example follows the approach discussed above.
<!DOCTYPE HTML> <html>   <head>     <title>         How to get array structure         with alert() in JavaScript?     </title> </head>   <body style="text-align:center;" id="body">     <h1 style="color:green;">             GeeksForGeeks         </h1>     <p id="GFG_UP" style="font-size: 15px; font-weight: bold;">     </p>     <button onclick="gfg_Run()">         Click here     </button>     <script>         var el_up = document.getElementById("GFG_UP");         var arr = [1, 2, 4, 6, 9];         el_up.innerHTML = "Click on the button to see the array structure using Alert().<br> Array is = "         + arr;           function gfg_Run() {             alert(arr.join('\n'));         }     </script> </body>   </html> |
Output:
-
Before clicking on the button:
-
After clicking on the button:
