인프런 커뮤니티 질문&답변

const util = require('util');
const crypto = require('crypto');
const dontuseme = util.deprecate((x, y) =>{
    console.log(x + y);
});
dontuseme(1,2);

이 소스 코드를 쓰면

아래 에러가 나는데

/usr/local/bin/node /Users/usang-in/WebstormProjects/nodejs-crawler/lecture2/util.js

internal/process/warning.js:121

    throw new ERR_INVALID_ARG_TYPE('warning', ['Error', 'string'], warning);

    ^

TypeError [ERR_INVALID_ARG_TYPE]: The "warning" argument must be one of type Error or string. Received type undefined

    at process.emitWarning (internal/process/warning.js:121:11)

    at deprecated (internal/util.js:61:17)

    at Object.<anonymous> (/Users/usang-in/WebstormProjects/nodejs-crawler/lecture2/util.js:6:1)

    at Module._compile (internal/modules/cjs/loader.js:776:30)

    at Object.Module._extensions..js (internal/modules/cjs/loader.js:787:10)

    at Module.load (internal/modules/cjs/loader.js:643:32)

    at Function.Module._load (internal/modules/cjs/loader.js:556:12)

    at Function.Module.runMain (internal/modules/cjs/loader.js:839:10)

    at internal/main/run_main_module.js:17:11

Process finished with exit code 1

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