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SecurityError: Blocked a frame with origin from accessing a cross-origin frame
...iframe using [CSS custom property]
code:
iframe
$(function() {
window.onload = function() {
// create listener
function receiveMessage(e) {
document.documentElement.style.setProperty('--header_bg', e.data.wl.header_bg);
document.documentElement.style.setP...
使用 Google Code Prettify 实现代码高亮 - 开源 & Github - 清泛网 - 专注C/C++及内核技术
...现代码高亮
在 body 标签上添加调用方法，如下：
<body onload="prettyPrint()">
</body>
将你需要高亮显示的代码片断放在<pre>标记里，如下：
<pre class="prettyprint">
@*你的代码片断*@
</pre>
使用 jQuery 小技巧实现优化
上述方法可...
JS Client-Side Exif Orientation: Rotate and Mirror JPEG Images
...srcBase64, srcOrientation, callback) {
var img = new Image();
img.onload = function() {
var width = img.width,
height = img.height,
canvas = document.createElement('canvas'),
ctx = canvas.getContext("2d");
// set proper canvas dimensions before transform &am...
Is it possible to append to innerHTML without destroying descendants' event listeners?
...ttribute onclick="sayHi()" directly in template similar like your <body onload="start()"> - this approach similar to frameworks angular/vue/react/etc. You can also use <template> to operate on 'dynamic' html like here. It is not strict unobtrusive js however it is acceptable for small pr...
Get Base64 encode file-data from Input Form
...eader = new FileReader();
reader.readAsBinaryString(file);
reader.onload = function() {
console.log(btoa(reader.result));
};
reader.onerror = function() {
console.log('there are some problems');
};
}
...
How to check file MIME type with javascript before upload?
...iles[i]; // See step 1 above
var fileReader = new FileReader();
fileReader.onloadend = function(e) {
var arr = (new Uint8Array(e.target.result)).subarray(0, 4);
var header = "";
for(var i = 0; i < arr.length; i++) {
header += arr[i].toString(16);
}
console.log(header);
// Check ...
How to get the response of XMLHttpRequest?
...ut it's optional used based on requirement.
1. Using POST Method:
window.onload = function(){
var request = new XMLHttpRequest();
var params = "UID=CORS&name=CORS";
request.onreadystatechange = function() {
if (this.readyState == 4 && this.status == 200) {
...
How can I pop-up a print dialog box using Javascript?
...
You could do
<body onload="window.print()">
...
</body>
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Binding an enum to a WinForms combo box, and then setting it
...ue in the Load event. For example, add this code:
protected override void OnLoad(EventArgs e)
{
base.OnLoad(e);
comboBox1.SelectedItem = MyEnum.Something;
}
And check if it works.
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...
Binding multiple events to a listener (without JQuery)?
...
I have a simpler solution for you:
window.onload = window.onresize = (event) => {
//Your Code Here
}
I've tested this an it works great, on the plus side it's compact and uncomplicated like the other examples here.
...