[JS] JavaScript get call stack trace

안녕하세요, Einere입니다.

(ADblock을 꺼주시면 감사하겠습니다.)

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오늘은 자바스크립트로 호출 스택을 얻는 방법을 알아보도록 하겠습니다.

 

 

 

호출 스택

코드

function getStackTrace () {
    let stack = new Error().stack || '';
    stack = stack.split('\n').map(function (line) { return line.trim(); });
    return stack.splice(stack[0] == 'Error' ? 2 : 1);
}

getStackTrace()[2]; // get stack trace info 2 levels-deep

위와 같은 함수를 이용해, 호출 스택을 얻을 수 있습니다.

 

 

주의사항

This feature is non-standard and is not on a standards track. Do not use it on production sites facing the Web: it will not work for every user. There may also be large incompatibilities between implementations and the behavior may change in the future.

MDN에 따르면, Error.prototype.stack은 비표준이라고 합니다.

 

 

 

참고

https://stackoverflow.com/questions/6715571/how-to-get-result-of-console-trace-as-string-in-javascript-with-chrome-or-fire

How to get result of console.trace() as string in javascript with chrome or firefox?

https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Error/Stack

Error.prototype.stack