I have a page hosted on a server which injects small portion of script to my index.html page and would like to remove this script before it runs. Simplified example looks like this <!doctype html> <html lang="en"> <body> <script id="removeme">…
i've just began my SWE bootcamp a few months ago and recently began learning about javascript i was working on an assessment but kept getting this question wrong and was hoping someone would be able to explain this to me:…
I have a HTML table generated with a <asp:GridView/> object via a VB.Net call that populates the table from a database query. The result is a table like this: <table id="myTab"> <tr><td>val1</td></tr> <tr><td>val2</td></tr> . . <tr><td>valN</td></tr> The javascript code is…
According to the documentation, the DOMDocument::loadHTML() method "returns true on success or false on failure". My first question is how can it fail? As well as correct HTML and very incorrect HTML, I have also tried feeding it complete, random,…
trying to create a Richt Texteditor in Javascript. I have a Tag <span class="text-3xl">Foo</span> and want to edit it to something like <span class="text-3xl">F</span><span class="text-sm">o</span><span class="text-3xl">o</span> My first attempt works, for inserting a Tag inside the other <span class="text-3xl">F<span class="text-sm">o</span>o</span>…
How is React able to update only the parts of the DOM that require updating (because they've changed) as opposed to re-rendering the entire DOM? From what I understand, regular HTML/Javascript web pages react to changes in the DOM by…
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…