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
How to get php variable in javascript ?
File name : index.php
<?php $num = 10; ?>
<script>
function myFunction()
{
var jsval = "<?php echo $num; ?>";
if(jsval < 1)
{
alert("Your number is lessthan 1.");
}
else
{
window.location="http://itechtuto.com/";
}
}
</script>
How to disable and enable button in javascript.
Submit button is disable first . when you click on any text or div then enable submit button.
File name : index.php
<script>
function myFunction()
{
document.getElementById("sub").disabled = false;
}
function myalert()
{
alert("You click on the submit button.");
}
</script>
<button id="sub" type="submit" onclick="myalert()" disabled>Submit</button>
<p id="pid" onclick="myFunction()">Click on me then enable the submit button.</p>
how to get html tagname value in javascript ?
when you click on the paragraph text tenn it gets text of html tags.
File name : index.php
<html>
<head>
<script type="text/javascript">
function myfunction(li) {
var TextInsideLi = li.getElementsByTagName('p')[0].innerHTML;
alert(TextInsideLi);
}
</script>
</head>
<body>
<ul>
<ul>
<li onclick="myfunction(this)">
<span></span>
<p>This Text</p>
</li>
</ul>
</body>
</html>