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JavaScriptObject

Inherits: RefCounted < Object

Web 原生 JavaScript 对象的封装类。

Description

JavaScriptObject 用于与通过 JavaScriptBridge.get_interface、JavaScriptBridge.create_object 或 JavaScriptBridge.create_callback 检索或创建的 JavaScript 对象进行交互。

示例：

extends Node

var _my_js_callback = JavaScriptBridge.create_callback(myCallback) # 必须保留该引用
var console = JavaScriptBridge.get_interface("console")

func _init():
    var buf = JavaScriptBridge.create_object("ArrayBuffer", 10) # 新建 ArrayBuffer(10)
    print(buf) # 输出 [JavaScriptObject:OBJECT_ID]
    var uint8arr = JavaScriptBridge.create_object("Uint8Array", buf) # 新建 Uint8Array(buf)
    uint8arr[1] = 255
    prints(uint8arr[1], uint8arr.byteLength) # 输出 255 10
    console.log(uint8arr) # prints in browser console "Uint8Array(10) [ 0, 255, 0, 0, 0, 0, 0, 0, 0, 0 ]"

    # 等效于 JavaScriptBridge: Array.from(uint8arr).forEach(myCallback)
    JavaScriptBridge.get_interface("Array").from(uint8arr).forEach(_my_js_callback)

func myCallback(args):
    # 将使用传递给“forEach”回调的参数调用
    # [0, 0, [JavaScriptObject:1173]]
    # [255, 1, [JavaScriptObject:1173]]
    # ...
    # [0, 9, [JavaScriptObject:1180]]
    print(args)

注意：仅在 Web 平台上可用。