JavaScriptObject

继承： RefCounted < Object

Web 原生 JavaScript 对象的封装类。

描述

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：

  1. extends Node
  3. var _my_js_callback = JavaScriptBridge.create_callback(myCallback) # 必须保留该引用
  4. var console = JavaScriptBridge.get_interface("console")
  6. func _init():
  7.     var buf = JavaScriptBridge.create_object("ArrayBuffer", 10) # 新建 ArrayBuffer(10)
  8.     print(buf) # 输出 [JavaScriptObject:OBJECT_ID]
  9.     var uint8arr = JavaScriptBridge.create_object("Uint8Array", buf) # 新建 Uint8Array(buf)
  10.     uint8arr[1] = 255
  11.     prints(uint8arr[1], uint8arr.byteLength) # 输出 255 10
  12.     console.log(uint8arr) # prints in browser console "Uint8Array(10) [ 0, 255, 0, 0, 0, 0, 0, 0, 0, 0 ]"
  14.     # 等效于 JavaScriptBridge: Array.from(uint8arr).forEach(myCallback)
  15.     JavaScriptBridge.get_interface("Array").from(uint8arr).forEach(_my_js_callback)
  17. func myCallback(args):
  18.     # 将使用传递给“forEach”回调的参数调用
  19.     # [0, 0, [JavaScriptObject:1173]]
  20.     # [255, 1, [JavaScriptObject:1173]]
  21.     # ...
  22.     # [0, 9, [JavaScriptObject:1180]]
  23.     print(args)

注意：仅在 Web 平台上可用。

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