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how to stop browser back button using javascript
...o restrict the user from going back in an exam.
I have tried the following script but it stops my timer.
What should I do?
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JavaScript: Get image dimensions
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var img = new Image();
img.onload = function(){
var height = img.height;
var width = img.width;
// code here to use the dimensions
}
img.src = url;
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Using PUT method in HTML form
...mitting it, create and fire a XMLHttpRequest using the PUT method with JavaScript.
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How to show Page Loading div until the page has finished loading?
...olute;
top: 100px;
left: 240px;
z-index: 100;
}
Then, add this javascript to your page (preferably at the end of your page, before your closing </body> tag, of course):
<script>
$(window).load(function() {
$('#loading').hide();
});
</script>
Finally, adjust the p...
Why does jQuery or a DOM method such as getElementById not find the element?
...
The element you were trying to find wasn’t in the DOM when your script ran.
The position of your DOM-reliant script can have a profound effect upon its behavior. Browsers parse HTML documents from top to bottom. Elements are added to the DOM and scripts are (generally) executed as they'r...
Response.Redirect with POST instead of Get?
... I know, the only way to implement something like this would be to use Javascript. There are two options I can think of off the top of my head:
Create the form and have its action attribute point to the third-party server. Then, add a click event to the submit button that first executes an AJAX ...
Can I run javascript before the whole page is loaded?
I want to run a bit of javascript before the whole page has loaded. Is this possible? Or does the code start to execute on </html> ?
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What is the (function() { } )() construct in JavaScript?
...n is executed right after it's created, not after it is parsed. The entire script block is parsed before any code in it is executed. Also, parsing code doesn't automatically mean that it's executed, if for example the IIFE is inside a function then it won't be executed until the function is called.
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browser sessionStorage. share between tabs?
...code would need to exist on ALL tabs. It should execute before your other scripts.
// transfers sessionStorage from one tab to another
var sessionStorage_transfer = function(event) {
if(!event) { event = window.event; } // ie suq
if(!event.newValue) return; // do nothing if no value t...
How to style SVG with external CSS?
...is possible to style an SVG by dynamically creating a style element in JavaScript and appending it to the SVG element. Hacky, but it works.
<object id="dynamic-svg" type="image/svg+xml" data="your-svg.svg">
Your browser does not support SVG
</object>
<script>
var svgHolder...