Hi, I found a bundler library called esbuild[1] built by Evan Wallace. The benchmark looks very promising. So I tried it on echarts and speed really impressed me. It only takes about 100ms for a full build. Meanwhile, our current solution may take 1 minute. Even if with incremental build it may still take about 10 seconds.
There are some limitations: 1. The built target can only be ESNext. 2. It won't do any type checking on TypeScript. But I don't think it will be an issue if we only use it in the development environment. The type checking can be done before we commit the code with the hook. So I can't help to create a commit[2] in the next branch to integrate it. Please have a try. [1] https://github.com/evanw/esbuild [2] https://github.com/apache/incubator-echarts/commit/4d8fbea69eafc807c3aa935314f0f962177ea53f -- Yi Shen Apache ECharts(incubating) PPMC
