I'm new to React and was wondering if anyone had experience in using the React Flow library dynamically? As far as I can tell, the main way of using this library is to create a static .tsx file in the src/components/ directory.
I would like to use a JSON entry from my MongoDB and dynamically create a flow chart based on certain flags/values within React. If this is possible with React Flow, I'd appreciate a link or help! Thanks in advance.
That's absolutely possible.
As you can see in this example, node and edges are expressed as JSON: https://reactflow.dev/examples/edges/
You can modify the elements array at any time and add furhter elements by just adding simple JSON nodes.
On top of that you can autolayout your diagram: https://reactflow.dev/examples/layouting/
Check out the save and restore docs. You can save (or build your own) JSON representation of a workflow, then restore it as needed.
https://reactflow.dev/docs/examples/interaction/save-and-restore/
Related
I want to implement search in a react project where i have a file locally in the project folder and i want to search from that file.
Should i load the file data into a state variable? not sure but i don't think that is something i should implement since the file can be very large in size.
Any help or direction would be appreciated, thanks!
Currently i'm storing the data into a state and then performing the search. I wanted to know if there are any better ways to do the same.
You are right about it. loading a file in state first of all can be a bad idea because its loaded like an Array Buffer or sort, so its all binary not exact text. Hence search would be a problem.
This usecase is more for the backend side to handle in Real World scenarios.
How do you extract a specific React component from a library?
I'm trying to get the source code for just this component: https://rsuitejs.com/components/tree/ so that I can modify it for my specific use case.
My plan is to clone the entire library in a new React App, and then just start deleting files that I don't need. Not sure if this is the right way or if there is a more efficient way to to go about this. Any insight would be greatly appreciated!
I'm looking for a way to get the XML (or another way/structure) from a sequence of blocks used on my workspace inside Scratch-MIT 3.0 to display this code in the Blockly Google's library.
Right now I have access to the Abstract Syntax Tree generated by the scratch-vm component (https://github.com/LLK/scratch-vm), but I don't see a way to "rebuild" the code represented on this right on my workspace.
Is Scratch rendering the code from the Abstract Syntax tree structure or what? And how?
I've created a new function on my "blocks.jsx" file:
onBlockChange() {
console.log(this.ScratchBlocks.Xml.workspaceToDom(this.workspace));
}
And attached a new listener to the VMListener list (also in the "blocks.jsx" file):
this.props.vm.addListener('BLOCK_DRAG_UPDATE', this.onBlockChange);
This way, everytime that someone add's ou remove a block, I can get the XML info from the workspace.
I've been working on a Card UI generator in React and once the user is finished with customising it using the UI I want to be able to convert the card (that's a React Component) and export the HTML and CSS behind it. Is there a way to turn a component into HTML String?
You can use ReactDOMServer:
ReactDOMServer.renderToString(element)
With the testing tool it is possible to render a component into a string. Maybe that fits your use-case?
https://github.com/airbnb/enzyme
If you're using create-react-app, you can create the production-ready build by using npm run build. That will create the HTML and CSS for you.
If you're looking to render particular components, you might look into server-side rendering.
I am wondering if there is a way to modify the app tree. For example, lets say I have a component located in app\components\my-component.js . I want to totally ignore this component and not build it into the project. Is this possible?
I tried adding the following lines in my ember-cli-build :
var appTree = new Funnel(app.toTree(), {
exclude: ['my-component.js']
});
But I believe that app.toTree() returns the tree after it has been minified and merged into a single assets/my-app.js . So it seems it is too late here.
Is there anyway I can do this? Thank you.
Use case is, for example, if I have a single ember project, but I want to build it for different targets (whatever targets could be, let's say french and english) , I want to be able to completely exclude some files belonging to the other target, while building for another.
You can't do this from your ember-cli-build.js.
To do this you have to write an ember-cli addon. However you can use an in-repo-addon if you want to.
I think the right hook is postprocessTree. And probably you want to filter on the app tree.