How To Dev

Introduction D3.js (Data-Driven Documents) is a powerful JavaScript library for producing dynamic, interactive data visualizations from numerical data. Instead of providing pre-built charts, D3 offers low-level tools that allow you to manipulate DOM elements directly (typically SVGs, Canvas, or HTML). The advantages: Infinite Customization: You can create any type of chart you can imagine. High Performance: Smoothly handles large data sets and animated transitions. Strong Mathematical Ecosystem: Fully supports scale calculation functions, coordinate axis formatting, and complex geometric algorithms. Detail First, let's start with a simple example of drawing a line chart that describes monthly revenue during the year. Please create the file app/api/revenue/route.ts to simulate a 12-month revenue api with a random amount from 1000-6000 import {NextResponse} from 'next/server' export async function GET () { const data = Array. from ({ length: 12 }, ( _ , i ) => ...

Introduction In this article, I will guide you through using Konva to export content you've created. Exporting can be done on either the frontend or backend, each with its own pros and cons: Frontend: Pushing processing to the frontend means the backend doesn't consume extra resources for this task. However, when exporting a template with too many elements, a user's machine with a weak configuration might not handle it, causing the app to crash. Backend: If the backend handles exporting, it will incur extra server costs. But in return, we can configure system scaling to support exporting large, complex templates. This simplifies backend processing and ensures the user interface always runs smoothly on the frontend. In short, if this export function isn't a highly critical part of your system that needs prioritization, you can let the frontend handle it. If you are deploying a commercial product, you should handle this on the backend to provide a smooth experience for th...