Context- and scope- aware variable renaming.
In
var globalVariableName = 42;
function foo() {
var longLocalVariableName = 1;
if (longLocalVariableName) {
console.log(longLocalVariableName);
}
}
Out
var globalVariableName = 42;
function foo() {
var a = 1;
if (a) {
console.log(a);
}
}
$ npm install babel-plugin-minify-mangle-names
.babelrc
// without options
{
"plugins": ["minify-mangle-names"]
}
// with options
{
"plugins": ["minify-mangle-names", { "blacklist": { "foo": true, "bar": true} }]
}
$ babel --plugins minify-mangle-names script.js
require("babel-core").transform("code", {
plugins: ["minify-mangle-names"]
});
blacklist
- A plain JS Object with keys as identifier names and values indicating whether to excludeeval
- mangle identifiers in scopes accessible by evalkeepFnName
- prevent mangler from altering function names. Useful for code depending onfn.name
keepClassName
- prevent mangler from altering class names.