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  1. 개발자를 위한 웹 기술
  2. JavaScript
  3. JavaScript 참고서
  4. 표준 내장 객체
  5. DataView
  6. DataView.prototype.getInt8()
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DataView.prototype.getInt8()

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since 2015년 7월.

DataView 인스턴스의 getInt8() 메서드는 이 DataView의 지정된 바이트 오프셋에서 1바이트를 읽고 이를 8비트 부호 있는 정수로 해석합니다.

In this article

시도해 보기

// Create an ArrayBuffer with a size in bytes const buffer = new ArrayBuffer(16); const view = new DataView(buffer); view.setInt8(1, 127); // Max signed 8-bit integer console.log(view.getInt8(1)); // Expected output: 127

구문

js
getInt8(byteOffset)

매개변수

byteOffset

데이터를 읽을 데이터 뷰의 시작점으로부터의 오프셋(바이트).

반환 값

-128 이상 127 이하의 정수

예외

RangeError

데이터 뷰의 끝을 넘어서 읽을 수 있는 byteOffset이 설정된 경우 발생합니다.

예제

getInt8() 메서드 사용하기

js
const { buffer } = new Uint8Array([0, 1, 2, 3, 4, 5, 6, 7, 8, 9]); const dataview = new DataView(buffer); console.log(dataview.getInt8(1)); // 1

명세서

Specification
ECMAScript® 2027 Language Specification
# sec-dataview.prototype.getint8

브라우저 호환성

Enable JavaScript to view this browser compatibility table.

같이 보기

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  1. 표준 내장 객체
  2. DataView
  3. 생성자
    1. DataView() 생성자
  4. 인스턴스 메서드
    1. DataView.prototype.getBigInt64()
    2. DataView.prototype.getBigUint64()
    3. DataView.prototype.getFloat16()
    4. DataView.prototype.getFloat32()
    5. DataView.prototype.getFloat64()
    6. DataView.prototype.getInt8()
    7. DataView.prototype.getInt16()
    8. DataView.prototype.getInt32()
    9. DataView.prototype.getUint8()
    10. DataView.prototype.getUint16()
    11. DataView.prototype.getUint32()
    12. DataView.prototype.setBigInt64()
    13. DataView.prototype.setBigUint64()
    14. DataView.prototype.setFloat16()
    15. DataView.prototype.setFloat32()
    16. DataView.prototype.setFloat64()
    17. DataView.prototype.setInt8()
    18. DataView.prototype.setInt16()
    19. DataView.prototype.setInt32()
    20. DataView.prototype.setUint8()
    21. DataView.prototype.setUint16()
    22. DataView.prototype.setUint32()
  5. 인스턴스 속성
    1. DataView.prototype.buffer
    2. DataView.prototype.byteLength
    3. DataView.prototype.byteOffset
  6. 상속
  7. Object/Function
  8. 정적 메서드
    1. Function.prototype.apply()
    2. Function.prototype.bind()
    3. Function.prototype.call()
    4. Function.prototype.toSource()
    5. Function.prototype[@@hasInstance]()
  9. 정적 속성
    1. Function: displayName
    2. Function.prototype.length
    3. Function: name
    4. Function
    5. Function.arguments
    6. Function.prototype.caller
  10. 인스턴스 메서드
    1. Object.prototype.__defineGetter__()
    2. Object.prototype.__defineSetter__()
    3. Object.prototype.__lookupGetter__()
    4. Object.prototype.__lookupSetter__()
    5. Object.prototype.hasOwnProperty()
    6. Object.prototype.isPrototypeOf()
    7. Object.prototype.propertyIsEnumerable()
    8. Object.prototype.toLocaleString()
    9. Object.prototype.toString()
    10. Object.prototype.valueOf()
  11. 인스턴스 속성
    1. Object.prototype.__proto__
    2. Object.prototype.constructor

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