Specifically, another code optimizations are possible for JavaScript code however they are maybe not done-by esbuild (maybe not a keen exhaustive checklist):
- Dead-password removing inside mode authorities
- Mode inlining
- Cross-statement ongoing propagation
- Object shape modeling
- Allocation sinking
- Approach devirtualization
- Symbolic performance
- JSX expression hoisting
- TypeScript enum detection and inlining
In case the password utilizes models that need several of this type of forms of password optimisation is lightweight, or you want the optimal JavaScript minification algorithm for your use case, you should know playing with other tools. Some examples away from products you to definitely implement these complex code optimizations tend to be Terser and you will Google Closure Compiler.
#Outdir
This sets the brand new production list towards create operation. Instance, that it command can establish a directory titled aside :
The latest productivity index might possibly be produced whether it cannot currently can be found, but it may not be eliminated when it already contains some files. People generated records tend to quietly overwrite present data files with similar name. You should clear the brand new efficiency directory on your own ahead of running esbuild if the need brand new productivity list to simply have data about most recent work with out-of esbuild.
In case the make includes multiple admission products in independent directories, the newest directory design could be duplicated to the yields directory starting in the low prominent predecessor directory certainly one of most of the enter in access point routes. Including, if there are two main admission things src/ home/ directory.ts and you can src/ about/ directory.ts , brand new returns list usually contain family/ directory.js and in the/ index.js . If you would like tailor which behavior, you will want to replace the outbase index.
#Outfile
This package set the efficiency document label on create process. This will be just appropriate if there’s an individual entry way. When the there are numerous admission facts, you must utilize the outdir choice instead so you can indicate a production list. Using outfile turns out so it:
#Platform
Automatically, esbuild’s bundler was designed generate password intended for the newest web browser. In the event the bundled password is meant to run-in node instead, you will want to set the working platform to node :
Whenever bundling is let the fresh default yields structure is decided so you can iife , and this wraps brand new made JavaScript password into the an instantaneously-invoked form phrase to get rid of parameters from dripping towards globally range.
In the event that a package determine a map towards browser field into the the package.json document, esbuild uses one to map to restore certain documents otherwise modules along with their web browser-amicable sizes. Instance, a deal might consist of a replacement off path which have road-browserify .
Area of the fields setting is decided so you can browser, module, chief however with certain a lot more special decisions. In the event that a deal supports module and you can head although not browser upcoming fundamental can be used as opposed to component if it bundle is actually ever before imported having fun with need() . So it behavior improves being compatible that have CommonJS segments you to export a work from the delegating it so you’re able to component.exports .
The fresh new requirements form immediately boasts the fresh new web browser updates. That it transform how the exports job during the bundle.json data try translated to help you prefer internet browser-specific code.
With all the build API, all process. env. NODE_ENV terms try immediately discussed in order to “production” if all minification options are permitted and you may “development” if not. So it Over 50 singles dating sites just happens in the event that process , procedure.env , and you will process.env.NODE_ENV aren’t currently defined. This replacement is required to avoid Behave-dependent password crashing instantaneously (since the techniques is a good node API, maybe not a web API).
When bundling try enabled the latest default returns style is set to help you cjs , which is short for CommonJS (the latest component style utilized by node). ES6-build exports using export comments could be turned into getters toward this new CommonJS exports object.