revmischa (Mischa Spiegelmock) · GitHub
Description: All the text that's fit to blog
One fantastic feature of JavaScript (compared to say, Python) is that it is possible to bundle your code for packaging; removing everything that is not needed to run your code. We call this “tree-shaking” because the stuff you aren’t using falls out leaving the strongly-attached bits. This reduces the size of your output, whether it’s a NPM module, code to run in a browser, or a NodeJS application.
By way of illustration, suppose we have a script that imports a function from a library. Here it calls apple1() from lib.ts :
If we bundle script.ts using esbuild :
revmischa (Mischa Spiegelmock) · GitHub