Extract object properties

Option: transforms.extractObjectProperties

What it changes

Replaces eligible object and array wrapper bindings with separate bindings for their statically accessed entries.

var ops = {
  double: function (x) { return x * 2; },
  negate: function (x) { return -x; },
};
log(ops.double(3), ops.negate(7));

var double = function (x) { return x * 2; };
var negate = function (x) { return -x; };
log(double(3), negate(7));

Run this transform by setting transforms.extractObjectProperties to true:

obfuscate.mjs

const output = obfuscate(source, {
  transforms: {
    extractObjectProperties: true,
  },
})

Open the TypeScript implementation on GitHub.

Review behavior checks and cases this transform leaves alone.

Last modified on August 26, 2026