JxBrowser/com.teamdev.jxbrowser.frame/[jvm]Frame/executeJavaScript

executeJavaScript

@Nullable()

public abstract T executeJavaScript<T>(String javaScript)

Executes the given javaScript code in the frame and returns the result of the execution.

The type mapping rules are the following:

| JavaScript         | Java           |
|--------------------|----------------|
| Number             | Double         |
| String             | String         |
| Boolean            | Boolean        |
| null and undefined | null           |
| Node               | JsObject, Node |
| ArrayBuffer        | JsArrayBuffer  |
| Array              | JsArray        |
| Set                | JsSet          |
| Map                | JsMap          |
| Object             | JsObject       |
| Proxy Object       | Object         |

Proxy objects are mapped to the corresponding injected Java object.

Important: This method blocks the current thread execution and waits until the passed JavaScript code has been executed completely. The time required to complete the execution can be different depending on the passed JavaScript code. So, it is strongly recommended that the method is not invoked in the application UI thread.

Return

the result of the execution. Can be null if the result of the execution on JavaScript is null or undefined

Parameters

javaScript

a string that represents JavaScript code to execute

<T>

the result type according to the type mapping rules

Throws

ObjectClosedException

when the frame is closed

IllegalArgumentException

when javaScript is empty

public abstract void executeJavaScript(String javaScript, Consumer<? extends Object> callback)

Executes the given javaScript code in the frame and returns the result of the execution through the given callback.