What is babel-plugin-minify-flip-comparisons?
The babel-plugin-minify-flip-comparisons package is a Babel plugin that optimizes comparison expressions by flipping them to a canonical form. This can help in reducing the size of the code and potentially improve performance by standardizing the comparison operations.
What are babel-plugin-minify-flip-comparisons's main functionalities?
Flip Comparison Operators
This feature flips comparison operators to their canonical form. For example, it will transform `a < b` to `b > a`. This can help in reducing the size of the code and making it more consistent.
const a = 5;
const b = 10;
if (a < b) {
console.log('a is less than b');
}
Other packages similar to babel-plugin-minify-flip-comparisons
babel-plugin-minify-simplify
The babel-plugin-minify-simplify package is another Babel plugin that focuses on simplifying expressions and statements. It performs various optimizations like removing unreachable code, simplifying boolean expressions, and more. Unlike babel-plugin-minify-flip-comparisons, it covers a broader range of code simplifications.
babel-plugin-minify-flip-comparisons
Note: while this plugin doesn’t shorten the output in any way, it does optimize it for repetition-based compression algorithms such as gzip.
Example
In
const foo = a === 1;
if (bar !== null) {
var baz = 0;
}
Out
const foo = 1 === a;
if (null !== bar) {
var baz = 0;
}
Installation
npm install babel-plugin-minify-flip-comparisons --save-dev
Usage
Via .babelrc
(Recommended)
.babelrc
{
"plugins": ["minify-flip-comparisons"]
}
Via CLI
babel --plugins minify-flip-comparisons script.js
Via Node API
require("@babel/core").transform("code", {
plugins: ["minify-flip-comparisons"]
});