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Invoking JavaScript code in an iframe from the parent page
... $(document).ready() will not work. Instead put the call inside the body's onload tag, or in an anchor <a href="javascript:doit();">do it</a> as suggested elswhere (see stackoverflow.com/questions/921387/…). Passing the function call to a script as a callback also usually works.
...
Capture HTML Canvas as gif/jpg/png/pdf?
...anvas width=200 height=200></canvas>
<script>
window.onload = function() {
var canvas = document.getElementById("canvas");
var context = canvas.getContext("2d");
context.fillStyle = "green";
context.fillRect(50, 50, 100, 100);
/...
Dynamically load a JavaScript file
...s browser compatibility
script.onreadystatechange = callback;
script.onload = callback;
// fire the loading
head.appendChild(script);
}
Then you write the code you want to use AFTER the script is loaded in a lambda function :
var myPrettyCode = function() {
// here, do what ever ...
Check if page gets reloaded or refreshed in JavaScript
...alert
alert('You refreshed!');
}
}
and in your body tag:
<body onload="checkFirstVisit()">
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What does this square bracket and parenthesis bracket notation mean [first1,last1)?
...lementById('output1').innerHTML = output;
}
<html>
<body onload="main();">
<pre id="output1"></pre>
</body>
</html>
Mathematicians, since they start counting at 1, would instead use the i = 1, i <= N nomenclature but now we nee...
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 get the mouse position without events (without moving the mouse)?
...of the resultpanel BEFORE page has fully loaded and don't move than. After onload the page immediatly knows the position of the mouse. No mouse movement is needed. So mouseenter is also fired, when the page has loaded and the mouse is inside the document area. That is, what the OP originally wanted....
Rendering HTML inside textarea
...);
inp.style.backgroundImage="url("+URL.createObjectURL(blob)+")";
}
onload=function(){
render();
ro = new ResizeObserver(render);
ro.observe(document.getElementById("box"));
}
#box{
color:transparent;
caret-color: black;
font-style: normal;/*must be same as in the svg for ...
Uploading both data and files in one form using Ajax?
...sed' but never addresses them. Nice piece of code, also showing how to use onload correctly +1
– mschr
Jul 23 '19 at 8:04
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img tag displays wrong orientation
...s"></script>
</body>
</html>
rotate.js:
window.onload=getExif;
var newimg = document.getElementById('campic');
function getExif() {
EXIF.getData(newimg, function() {
var orientation = EXIF.getTag(this, "Orientation");
if(orientation == 6) {
...