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  1. 웹어셈블리
  2. Reference
  3. WebAssembly
  4. WebAssembly.Instance
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WebAssembly.Instance

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since 2017년 10월.

WebAssembly.Instance 개체는 WebAssembly.Module의 상태 저장되고 실행 가능한 인스턴스입니다. Instance 객체에는 JavaScript에서 WebAssembly 코드로 호출 할 수있는 모든 Exported WebAssembly functions가 포함되어 있습니다.

주어진 WebAssembly.Module 객체를 동기적으로 인스턴스화하기 위해 WebAssembly.Instance() 생성자 함수를 호출 할 수 있습니다. 하지만 Instance를 가져 오는 주요 방법은 비동기 WebAssembly.instantiateStreaming () 함수를 사용하는 것입니다.

In this article

생성자

WebAssembly.Instance()

Creates a new Instance object.

인스턴스 속성

Instance.prototype.exports

Returns an object containing as its members all the functions exported from the WebAssembly module instance, to allow them to be accessed and used by JavaScript. Read-only.

명세

Specification
WebAssembly JavaScript Interface
# instances

브라우저 호환성

Enable JavaScript to view this browser compatibility table.

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This page was last modified on 2025년 6월 27일 by MDN contributors.

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  1. WebAssembly
  2. Guides
  3. 웹어셈블리의 개념
  4. Compiling WebAssembly
    1. C/C++ 모듈을 웹어셈블리로 컴파일하기
    2. Compiling an existing C module to WebAssembly
    3. Rust를 웹어셈블리로 컴파일하기
  5. WebAssembly language
    1. 웹어셈블리 텍스트 형식 이해하기
    2. Converting WebAssembly text format
    3. 내보낸 웹어셈블리(Exported WebAssembly) 함수
    4. JavaScript builtins
    5. Imported global string constants
  6. JavaScript API guide
    1. 웹어셈블리 JavaScript API 사용하기
    2. 웹어셈블리 코드 로딩하고 실행하기
  7. Reference
  8. JavaScript 인터페이스
    1. WebAssembly
      1. WebAssembly.compile()
      2. WebAssembly.compileStreaming()
      3. WebAssembly.instantiate()
      4. WebAssembly.instantiateStreaming()
      5. WebAssembly.validate()
    2. WebAssembly.Module
      1. WebAssembly.Module.customSections()
      2. WebAssembly.Module.exports()
      3. WebAssembly.Module.imports()
      4. WebAssembly.Module() constructor
    3. WebAssembly.Global
      1. Global()
      2. value
      3. valueOf()
    4. WebAssembly.Instance
      1. WebAssembly.Instance.prototype.exports
      2. WebAssembly.Instance() constructor
    5. WebAssembly.Memory
      1. WebAssembly.Memory.prototype.buffer
      2. WebAssembly.Memory.prototype.grow()
      3. WebAssembly.Memory() constructor
    6. WebAssembly.Table
      1. WebAssembly.Table.prototype.get()
      2. WebAssembly.Table.prototype.grow()
      3. WebAssembly.Table.prototype.length
      4. WebAssembly.Table.prototype.set()
      5. WebAssembly.Table() constructor
    7. WebAssembly.Tag
      1. WebAssembly.Tag.prototype.type()
      2. WebAssembly.Tag() constructor
    8. WebAssembly.Exception
      1. WebAssembly.Exception constructor
      2. WebAssembly.Exception.prototype.getArg()
      3. WebAssembly.Exception.prototype.is()
      4. WebAssembly.Exception.prototype.stack
    9. WebAssembly.CompileError
      1. WebAssembly.CompileError() constructor
    10. WebAssembly.LinkError
      1. WebAssembly.LinkError() constructor
    11. WebAssembly.RuntimeError
      1. WebAssembly.RuntimeError() constructor
  9. Definitions
    1. global
    2. table
  10. Instructions
    1. Control flow
      1. block
      2. br
      3. br_if
      4. br_table
      5. call
      6. drop
      7. end
      8. if...else
      9. loop
      10. nop
      11. return
      12. select
      13. unreachable
    2. Memory
      1. copy
      2. fill
      3. grow
      4. load
      5. size
      6. store
    3. Numeric
      1. abs
      2. add
      3. and
      4. ceil
      5. clz
      6. const
      7. convert
      8. copysign
      9. ctz
      10. demote
      11. div
      12. eq
      13. eqz
      14. extend
      15. floor
      16. ge
      17. ge_s
      18. ge_u
      19. gt
      20. gt_s
      21. gt_u
      22. le
      23. le_s
      24. le_u
      25. lt
      26. lt_s
      27. lt_u
      28. max
      29. min
      30. mul
      31. ne
      32. nearest
      33. neg
      34. or
      35. popcnt
      36. promote_32
      37. reinterpret
      38. rem
      39. rotl
      40. rotr
      41. shl
      42. shr_s
      43. shr_u
      44. sqrt
      45. sub
      46. trunc
      47. trunc_f32_s
      48. trunc_f32_u
      49. trunc_f64_s
      50. trunc_f64_u
      51. wrap_i64
      52. xor
    4. SIMD
      1. Arithmetic
        1. add_sat_s
        2. add_sat_u
        3. avgr_u
        4. dot_i16x8_s
        5. extadd_pairwise_i8x16_s
        6. extadd_pairwise_i8x16_u
        7. extadd_pairwise_i16x8_s
        8. extadd_pairwise_i16x8_u
        9. extmul_high_i8x16_s
        10. extmul_high_i8x16_u
        11. extmul_high_i16x8_s
        12. extmul_high_i16x8_u
        13. extmul_high_i32x4_s
        14. extmul_high_i32x4_u
        15. extmul_low_i8x16_s
        16. extmul_low_i8x16_u
        17. extmul_low_i16x8_s
        18. extmul_low_i16x8_u
        19. extmul_low_i32x4_s
        20. extmul_low_i32x4_u
        21. max_s
        22. max_u
        23. min_s
        24. min_u
        25. pmax
        26. pmin
        27. q15mulr_sat_s
        28. sub_sat_s
        29. sub_sat_u
      2. Bitwise
        1. all_true
        2. andnot
        3. any_true
        4. bitmask
        5. bitselect
        6. not
      3. Conversion
        1. convert_i32x4_s
        2. convert_i32x4_u
        3. convert_low_i32x4_s
        4. convert_low_i32x4_u
        5. demote_f64x2_zero
        6. extend_high_i8x16_s
        7. extend_high_i8x16_u
        8. extend_high_i16x8_s
        9. extend_high_i16x8_u
        10. extend_high_i32x4_s
        11. extend_high_i32x4_u
        12. extend_low_i8x16_s
        13. extend_low_i8x16_u
        14. extend_low_i16x8_s
        15. extend_low_i16x8_u
        16. extend_low_i32x4_s
        17. extend_low_i32x4_u
        18. narrow_i16x8_s
        19. narrow_i16x8_u
        20. narrow_i32x4_s
        21. narrow_i32x4_u
        22. promote_low_f32x4
        23. replace_lane
        24. shuffle
        25. splat
        26. swizzle
        27. trunc_sat_f32x4_s
        28. trunc_sat_f32x4_u
        29. trunc_sat_f64x2_s_zero
        30. trunc_sat_f64x2_u_zero
      4. Extract
        1. extract_lane
        2. extract_lane_s
        3. extract_lane_u
      5. Load and store
        1. load
        2. load8_lane
        3. load8_splat
        4. load8x8_s
        5. load8x8_u
        6. load16_lane
        7. load16_splat
        8. load16x4_s
        9. load16x4_u
        10. load32_lane
        11. load32_splat
        12. load32_zero
        13. load32x2_s
        14. load32x2_u
        15. load64_lane
        16. load64_splat
        17. load64_zero
        18. store
        19. store8_lane
        20. store16_lane
        21. store32_lane
        22. store64_lane
    5. Table
      1. fill
      2. get
      3. grow
      4. set
      5. size
    6. Variables
      1. global.get
      2. global.set
      3. local
      4. local.get
      5. local.set
      6. local.tee
  11. Types
    1. externref
    2. funcref
    3. v128

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