JavaScriptObject

继承： RefCounted < Object

A wrapper class for web native JavaScript objects.

描述

JavaScriptObject is used to interact with JavaScript objects retrieved or created via JavaScriptBridge.get_interface, JavaScriptBridge.create_object, or JavaScriptBridge.create_callback.

    extends Node
    
    var _my_js_callback = JavaScriptBridge.create_callback(myCallback) # This reference must be kept
    var console = JavaScriptBridge.get_interface("console")
    
    func _init():
        var buf = JavaScriptBridge.create_object("ArrayBuffer", 10) # new ArrayBuffer(10)
        print(buf) # prints [JavaScriptObject:OBJECT_ID]
        var uint8arr = JavaScriptBridge.create_object("Uint8Array", buf) # new Uint8Array(buf)
        uint8arr[1] = 255
        prints(uint8arr[1], uint8arr.byteLength) # prints 255 10
        console.log(uint8arr) # prints in browser console "Uint8Array(10) [ 0, 255, 0, 0, 0, 0, 0, 0, 0, 0 ]"
    
        # Equivalent of JavaScriptBridge: Array.from(uint8arr).forEach(myCallback)
        JavaScriptBridge.get_interface("Array").from(uint8arr).forEach(_my_js_callback)
    
    func myCallback(args):
        # Will be called with the parameters passed to the "forEach" callback
        # [0, 0, [JavaScriptObject:1173]]
        # [255, 1, [JavaScriptObject:1173]]
        # ...
        # [0, 9, [JavaScriptObject:1180]]
        print(args)

Note: Only available in the Web platform.