大约有 17,000 项符合查询结果（耗时：0.0100秒） [XML]
Detect when an image fails to load in Javascript
...st that.
function testImage(URL) {
var tester=new Image();
tester.onload=imageFound;
tester.onerror=imageNotFound;
tester.src=URL;
}
function imageFound() {
alert('That image is found and loaded');
}
function imageNotFound() {
alert('That image was not found.');
}
testIma...
Getting scroll bar width using JavaScript [duplicate]
...dth, while the other methods above don't work in Firefox for me.) eg, <script src="https://code.jquery.com/jquery-3.4.1.min.js"></script> <script src="https://code.jquery.com/ui/1.12.1/jquery-ui.min.js"></script>
– ashleedawg
May 15 '19...
Javascript: Extend a Function
...reToo();
});
But in your specific case, it's easier to extend the global onload function:
extendFunction('onload', function(args) {
doSomethingHereToo();
});
I actually really like your question, it's making me think about different use cases.
For javascript events, you really want to add an...
How to make HTML Text unselectable [duplicate]
...t;
If you'd like to cover older browsers as well, then consider this JavaScript fallback:
<!doctype html>
<html lang="en">
<head>
<title>SO question 2310734</title>
<script>
window.onload = function() {
var labels...
Why can't I do ?
...ility if the client could request local file system files and then use JavaScript to figure out what's in them.
The only way around this is to build an extension in a browser. Firefox extensions and IE extensions can access local resources. Chrome is much more restrictive.
...
Convert blob URL to normal URL
...blob);
var xhr = new XMLHttpRequest;
xhr.responseType = 'blob';
xhr.onload = function() {
var recoveredBlob = xhr.response;
var reader = new FileReader;
reader.onload = function() {
var blobAsDataUrl = reader.result;
window.location = blobAsDataUrl;
};
re...
How to prevent IFRAME from redirecting top-level window
... if a page A is loaded as an IFRAME inside an parent page P some Javascript in A redirects the outer window to A .
...
Set keyboard caret position in html textbox
...en they receive focus:
function addLoadEvent(func) {
if(typeof window.onload != 'function') {
window.onload = func;
}
else {
if(func) {
var oldLoad = window.onload;
window.onload = function() {
if(oldLoad)
...
Loading local JSON file
I'm trying to load a local JSON file but it won't work. Here is my JavaScript code (using jQuery):
23 Answers
...
Launch Bootstrap Modal on page load
I don't know javascript at all. The bootstrap documentation says to
18 Answers
18
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