antd-theme-generator/node_modules/minimalistic-assert/index.js

This a script to generate color specific styles less file and which you can use to change theme dynamically in browser

module.exports = assert;

function assert(val, msg) {
  if (!val)
    throw new Error(msg || 'Assertion failed');
}

assert.equal = function assertEqual(l, r, msg) {
  if (l != r)
    throw new Error(msg || ('Assertion failed: ' + l + ' != ' + r));
};