JavaScript Tutorials
- What is Javascript?
- What is BOM?
- What is DOM?
- Variable
- check variable value is empty
- JavaScript Output
- Functions
- Javascript Events
- Input Events
- onchange Event
- Javascript Output methods
- If else statement
- Arrays
- Pattern Validation
- Form Validation
- Inner Html Form Validation
- Inline Form Validation
- Checkbox Validation
- Inline Inner Html Form Validation
- Server side php Validation
- Validate a HTML Form with PHP
- window and window location
- Get Text Value
- Get hidden field value
- JavaScript & PHP
- Date Format
- get php value in javascript
- Redirect page & Autoredirect page
- Auto Refresh page & Div
- How to get select text value from Dropdown box
- How to clear browser history in javascript
- Checkbox Problems
- Select option problems
- Popup Contact Form
- Sidebar Contact Form
- How to use a multistep Form or Form wizard
- Auto Calculate Price
- print Application Form
- Auto Calculate GST in Javascript by select price
- Calculate GST by input value in text box Jquery
- Calculate Discount
- onClick Checkbox
- autofil form data click on checkbox
- Show subcategory list
- Show city list as per state
- Show district list as per country and state
- Show good morning good night wish
- image upload with preview image
- Print Div Content
- Show modal popup on page load
- filter table data usign javascript.
- Character Limit Validation.
- Validate File 5MB Upload
- Validate Special character
- More File Upload
- Call JavaScript Function After Page Load
- Drop Down First option Value Disabled --- Please Select ---
- How to Disable Submit Button After Form Submission
- How to disable browser back button using Jquery?
- How to Remove selected item from second & third dropdown list?
- Interview Questions of JavaScript.
Important Link
Auto Calculate GST in Javascript by select price
File name : index.php
<!DOCTYPE html>
<html>
<body>
<form name="frm-pin" method="post" action="pin-index-a.php">
<input type="hidden" name="mode" value="PinRequest" />
<label class="w3-text-green"><b>Choose price</b></label>
<select name="tot_pin_requested" onchange="calculateAmount(this.value)" required>
<option value="" disabled selected>Choose your option</option>
<option value="1000">1000</option>
<option value="2000">2000</option>
<option value="3000">3000</option>
<option value="4000">4000</option>
<option value="5000">5000</option>
</select>
<label><b>Total Amount after tax</b></label>
<input class="w3-input w3-border" name="tot_amount" id="tot_amount" type="text" readonly>
<script>
function calculateAmount(val)
{
var price = val * 1;
//display the result
var tot_price=price+(price*0.18);
var divobj = document.getElementById('tot_amount');
divobj.value = tot_price;
}
</script>
<body>
</html>