브라우저에서 파싱되는 자바스크립트의 특성상 소스를 감출수는 없고, 차선책으로 난독화 과정을 거쳐 분석하기 어렵게 한다.
1. 데드코드 삽입, 개발자 모드 사용금지, 도메인에 한정해서 실행등 많은 옵션을 적용해서 만들수 있다.
2. 말그대로 난독화로 사람이 읽고 분석하기 어렵게 만드는 과정으로 완벽하게 막을수는 없다.
3. 난독화 된 코드는 정확하게 원본소스로 변환이 불가능 하다.
https://obfuscator.io/
원본 코드를 아래와 같은 코드로 변경하지만 기능은 동일하다.
#원본
// Paste your JavaScript code here
function hi() {
console.log("Hello World!");
}
hi();
#변환
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