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babel-plugin-minify-simplify
Advanced tools
> Simplifies code for minification by reducing statements into expressions and making expressions uniform where possible.
babel-plugin-minify-simplify is a Babel plugin that performs various simplifications and optimizations on JavaScript code to make it smaller and more efficient. It is part of the Babel Minify project, which aims to reduce the size of JavaScript files by applying a series of transformations.
Dead Code Elimination
This feature removes code that will never be executed, such as code inside an `if (false)` block.
function example() {
if (false) {
console.log('This will be removed');
}
console.log('This will stay');
}
Constant Folding
This feature evaluates constant expressions at compile time, replacing them with their computed values. In this example, `1 + 2` is replaced with `3`.
const a = 1 + 2;
console.log(a);
Inlining Variables
This feature inlines variables that are only used once, reducing the number of variable declarations. In this example, `a` would be inlined directly into the `console.log` statement.
const a = 3;
console.log(a);
UglifyJS is a JavaScript parser, minifier, compressor, and beautifier toolkit. It provides similar functionalities to babel-plugin-minify-simplify, such as dead code elimination and constant folding, but it is a standalone tool rather than a Babel plugin.
Terser is a JavaScript parser and mangler/compressor toolkit for ES6+. It is a fork of UglifyJS and offers similar minification capabilities. Terser is often used in modern JavaScript projects for its ES6+ support and is comparable to babel-plugin-minify-simplify in terms of functionality.
This Babel plugin removes all `console.*` calls from the code. While it is more specialized than babel-plugin-minify-simplify, it can be used in conjunction with it to further reduce the size of the output by removing debugging statements.
Simplifies code for minification by reducing statements into expressions and making expressions uniform where possible.
In
function foo() {
if (x) a();
}
function foo2() {
if (x) a();
else b();
}
Out
function foo() {
x && a();
}
function foo2() {
x ? a() : b();
}
In
undefined
foo['bar']
Number(foo)
Out
void 0
foo.bar
+foo
npm install babel-plugin-minify-simplify --save-dev
.babelrc
(Recommended).babelrc
{
"plugins": ["minify-simplify"]
}
babel --plugins minify-simplify script.js
require("@babel/core").transform("code", {
plugins: ["minify-simplify"]
});
FAQs
> Simplifies code for minification by reducing statements into expressions and making expressions uniform where possible.
The npm package babel-plugin-minify-simplify receives a total of 325,209 weekly downloads. As such, babel-plugin-minify-simplify popularity was classified as popular.
We found that babel-plugin-minify-simplify demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 5 open source maintainers collaborating on the project.
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