I managed to plot an arrow with D3 that changes direction and size dynamically. Now, I would like to fill the encapsulated area with a color. However, I plot the arrow outline with a succession of lines, so I am not sure how to tell D3 that this area is closed and ready to fill? How shall I adjust my
Tag: javascript
Javascript – alternative for window.onload when loading code asynchronously
I have a calculator I’m integrating into my site. Normally, when on a page by itself, the calculator initializes with the following function However, I’m loading this calculator to the page asynchronously when the user asks for it, and it’s not on the page by default. How do I initialize the…
I’m getting TypeError: Cannot set property ‘props’ of undefined while trying to use props inside functional component in React?
here’s the App component: And this is the Title component: I don’t know what I’m doing wrong but this gives me an error TypeError: Cannot set property ‘props’ of undefined Answer Sigh, I shouldn’t be using but rather, It works now
Reason after blacklisting command Discord.js
I want to add a reason to my blacklists (with the command !blacklist {userid} {reason}) which are visible in the embeds below like .addField (“💬 Reason:”, somecode) how can I fix this? Answer First you’ll want to check if there is no reason, this can be simple done by checking, for both appr…
How do you clone an element’s NamedNodeMap to an empty object?
I have a javaScript array of objects, where the objects are called text, where each object element contains information about an HTML element that looks like the following using the Chrome browser’s inspect Source Watch area: Note: While the attributes member of text object (above) only contains the inf…
Access parent component scope in b-table slot
Im using a v-slot in a <b-table> so I can create a link. The first part of the link contains data from the datasource. However the querystring has a parameter that I need to include in the link. How can I get scope to my data that holds the querystring value so I can add the querystring to the link
Firebase authentication in ReactJS project – user null inside onAuthStateChanged
I’m tearing my hair out trying to setup email/password authentication through firebase. I’ve got my firebase configuration setup like so I’ve got a sign-in form created that calls the following function: First problem: I’m not seeing the “user created” message, even though …
ThemeProvider: “theme” prop is required. → React.js
🐛 Issue I created a Custom Hook to switch themes, but I’m facing this problem and I don’t exactly what could it be. Basically, when I try to change the theme, it works perfectly. But, after refreshing the page, it doesn’t stay with the correct one and gives me this error. ⚙️ Reproduce the is…
How to filter an incoming prop in React?
I’m trying to build a search bar using hooks but the props that I pass into my functional component gives me error and the output is never loaded. I pass the opt props from options.js to Filter.js. Here’s the code: Options.js Filter.js Answer In you Filter.js you are mapping directly the props.opt…
Add class to element on hover in Vue, without using data
In a Vue-component, I have a menu like this: And I would like to add the class hovered to the li.has-children-elements upon hover (mouseenter) (to be able to make some nicer animations for the children of that dropdown. And remove that class on mouseleave. I know that there are options to do this with pure CS…