大约有 20,000 项符合查询结果（耗时：0.0095秒） [XML]
Preloading CSS Images
...
I can confirm that my original code seems to work. I was casually sticking to an image with a wrong path.
Here's a test : http://paragraphe.org/slidetoggletest/test.html
<script>
var pic = new Image();
var pic2 = ne...
HTML5 Pre-resize images before uploading
...g = document.createElement("img");
var reader = new FileReader();
reader.onload = function(e) {img.src = e.target.result}
reader.readAsDataURL(file);
var ctx = canvas.getContext("2d");
ctx.drawImage(img, 0, 0);
var MAX_WIDTH = 800;
var MAX_HEIGHT = 600;
var width = img.width;
var height = img.he...
Use HTML5 to resize an image before upload
... // Load the image
var reader = new FileReader();
reader.onload = function (readerEvent) {
var image = new Image();
image.onload = function (imageEvent) {
// Resize the image
var canvas = document.createElement('canvas'),
...
How to print from GitHub
...
I can confirm that GitPrint is not working anymore =(
– Madeo
Feb 15 '19 at 0:14
|
...
How to calculate md5 hash of a file using javascript
... = event.dataTransfer.files[0];
var reader = new FileReader();
reader.onload = function(event) {
var binary = event.target.result;
var md5 = CryptoJS.MD5(binary).toString();
console.log(md5);
};
reader.readAsBinaryString(file);
};
I recommend to add some CSS to see the Drag &...
What is the non-jQuery equivalent of '$(document).ready()'?
...
The nice thing about $(document).ready() is that it fires before window.onload. The load function waits until everything is loaded, including external assets and images. $(document).ready, however, fires when the DOM tree is complete and can be manipulated. If you want to acheive DOM ready, witho...
How to go from Blob to ArrayBuffer
...t example:
var arrayBuffer;
var fileReader = new FileReader();
fileReader.onload = function(event) {
arrayBuffer = event.target.result;
};
fileReader.readAsArrayBuffer(blob);
Here's a longer example:
// ArrayBuffer -> Blob
var uint8Array = new Uint8Array([1, 2, 3]);
var arrayBuffer = uin...
How to detect internet speed in JavaScript?
...really accurate, the idea is load image with a known file size then in its onload event measure how much time passed until that event was triggered, and divide this time in the image file size.
Example can be found here: Calculate speed using javascript
Test case applying the fix suggested there:
...
Setting focus on an HTML input box on page load
...
You could also use:
<body onload="focusOnInput()">
<form name="passwordForm" action="verify.php" method="post">
<input name="passwordInput" type="password" />
</form>
</body>
And then in your JavaScript:
f...
Is it possible to ping a server from Javascript?
...ip = ip;
var _that = this;
this.img = new Image();
this.img.onload = function() {_that.good();};
this.img.onerror = function() {_that.good();};
this.start = new Date().getTime();
this.img.src = "http://" + ip;
this.timer = setTimeout(function() { _that.bad();}, 1500);...