I'm trying to reduce render count of a very heavy component which renders thousands of spans. I can't apply virtualization because spans have different size. <div contenteditable="true"> @foreach (var item in els) { <span @key="@item.Key" class="@item.cssClass">@item.String</span> } </div> I made…
When a React app is rendered for the first time, is the real DOM or the virtual DOM created first? React with JSX is converted to React.createElement(). So, does virtual DOM creation start from here and then, based on virtual…
I have a grid with an unknown number of rows and a variable number of columns. I set the number of columns by declaring a constant.* I detect a key combo to move focus from an element in the grid…
I have this code and it works, i can add a new lines and also delete them. The problem is when i select and option from the select input it changes the two inputs with the correct information. When i…
I would like to know how to dynamically retrieve the content text of a HTML tag and its child tags? Here is my HTML code, for example: <p><code>C:<select> <option value="test1">test1</option> <option value="test2">test2</option> </select>test3<select> <option value="test4">test4</option> <option value="test5">test5</option> </select>test6<select> <option value="test7">test7</option>…
I am using below HTML for my code. <body> <div id="myId" class="oldClass"> This is the original content of the element with ID "myId". </div> </body> I am perform DOM Manipulation using below JavaScript Code: const myElement = document.getElementById('myId'); myElement.setAttribute('data-example', 'value');…
I often times easily implemented event delegation with the "click" event on parent elements of something with code like HTML: <div> <span> <input type="radio" id="all0" name="difficulty-ask" class="difficultyaskclass" value="all" checked="checked" /> <label for="all0">All</label> <input type="radio" id="2easy1" name="difficulty-ask" class="difficultyaskclass" value="easy" /> <label…
I am looking to GET Data from API and display in HTML page using JavaScript fetch function. The JavaScript codes are detailed below. I can read the console.log of the user data from API. However, nothing is displayed on the…
I have a list of refs that is being forwarded to the child components. They seem to work fine as I can do operations with them as feedback to the user actions (in this case, it is scrolling into view).…
I want to instantiate a web component based on a <template> element in the DOM using JS to set 2 slot values title and text. template HTML <template id="tiddler-display"> <div class="tiddler"> <h1><slot name="title">TITLE</slot></h1> <p><slot name="text">TEXT</slot></p> </div> </template> How does one…