dom | 易学教程

“Copy as HTML” on nested IFrame elements in Chrome Inspector

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问题 In Chrome's web inspector, if you right-click a DOM element there's a "Copy as HTML" option that will normally give you an HTML string of that element and all its children. However, it doesn't seem to ever include the contents of IFrame tags despite the fact they appear in the inspector as child nodes. The problem isn't caused by cross-domain restrictions: Even same-domain IFrames are excluded from the copied HTML. Is there any way around this, short of just copy-and-pasting the HTML root of

How do I dynamically append a tag into a specific location of the tag?

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问题 In essence, I'm trying to implement a feature which highlights certain text when selected. This is strictly for the Google Chrome browser. For example: Before selection: <html> <body> sample text </body> </html> After selecting "text" from "sample text": <html> <body> sample text </body> </html> JavaScript: document.body.addEventListener("mousedown", (event) => { document.body.addEventListener("mouseup", (event) => { // Assume we have

CKEDITOR - Select span by its ID or CLASS and get its data attribute value

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问题 How do you manage the content in CKEditor with jQuery? I have this HTML: <div id="ckeditor_block"> <textarea id="editor1"> Hello My Name Is Zoob </textarea> </div> My JS: var textarea; $(document).ready(function () {

ReactJS - open upload dialog from external library

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问题 The bounty expires in 4 days . Answers to this question are eligible for a +50 reputation bounty. Gutelaunetyp wants to draw more attention to this question: Reproducable example would be great It is a specific upload functionality that I need from an external library. What I want to achieve is: open this external upload dialog if I click a button that is rendered by my ReactJS app. I got a few ideas in mind: Solution: Perform a synthetic click event on the "BS_WIDGET_INITIATOR" element if I

generateLegend() Chart.JS V2

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问题 I´m trying to customize my legend I´m using the .generateLegend() to get the legend in a html way this is what the function gave me console.log(myBarChart.generateLegend()); <ul class="1-legend"><li>SECRETARIA MUNICIPAL DE DESENVOLVIMENTO URBANO </li> <li>SECRETARIA MUNICIPAL DE SAUDE</li> <li>SETOR DE RH</li> <li><

generateLegend() Chart.JS V2

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Change loading order of images already on page

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问题 Is there any way without AJAX of changing the loading order of images on a page? Or even a way to completely halt or pause loading of images already present? The use case is simple - I have a long list of images down a page, and visitors will be landing on different spots of the page using URL anchors (/images#middle-of-page) that refer to actual containers for those images. I'd like in the least to load the images inside the requested container FIRST, then continue loading the rest of the

Why do modern JavaScript Frameworks discourage direct interaction with the DOM

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问题 In dealing with JS frameworks like AngularJS, Angular, and React, I've observed that directly interacting with the DOM is discouraged, and can often lead to bugs, if you ignore the warnings. When I say "interacting with the DOM" I mean using document.getElementById('myElement') and similar methods to do some manipulation or read values from the document. My question is essentially Why? . Is this a virtual DOM problem, where React (for example) isn't tracking the actual DOM, and therefore will

Why do modern JavaScript Frameworks discourage direct interaction with the DOM

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Why do modern JavaScript Frameworks discourage direct interaction with the DOM

阅读更多关于 Why do modern JavaScript Frameworks discourage direct interaction with the DOM