ass-ass-in.js

const assert = require('assert');

try {
    assert(false); // no matter what
} catch(exc) {
    console.log('CAUGHT=>', exc);
}

result.txt

CAUGHT=> { AssertionError [ERR_ASSERTION]: The expression evaluated to a falsy value:

  assert(false)

    at Object.<anonymous> (/home/jhyun/w/eth-fuku/est-gas/assassin.js:4:5)
    at Module._compile (internal/modules/cjs/loader.js:688:30)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:699:10)
    at Module.load (internal/modules/cjs/loader.js:598:32)
    at tryModuleLoad (internal/modules/cjs/loader.js:537:12)
    at Function.Module._load (internal/modules/cjs/loader.js:529:3)
    at Function.Module.runMain (internal/modules/cjs/loader.js:741:12)
    at startup (internal/bootstrap/node.js:285:19)
    at bootstrapNodeJSCore (internal/bootstrap/node.js:739:3)
  generatedMessage: true,
  name: 'AssertionError [ERR_ASSERTION]',
  code: 'ERR_ASSERTION',
  actual: false,
  expected: true,
  operator: '==' }