session.post(method[, params][, callback])

版本历史

版本	变更
v18.0.0	将无效回调传给 `callback` 参数现在会抛出 `ERR_INVALID_ARG_TYPE` 而不是 `ERR_INVALID_CALLBACK`。
v8.0.0	新增于: v8.0.0

method <string>
params <Object>
callback <Function>

向检查器后端发布消息。 callback 将在接收到响应时收到通知。 callback 是接受两个可选参数（错误和特定于消息的结果）的函数。

session.post('Runtime.evaluate', { expression: '2 + 2' },
             (error, { result }) => console.log(result));
// 输出：{ type: 'number', value: 4, description: '4' }

最新版本的 V8 检查器协议发布在 Chrome 开发者工具协议查看器。

Node.js 检查器支持 V8 声明的所有 Chrome 开发者工具协议域。 Chrome 开发者工具协议域提供了一个接口，用于与用于检查应用程序状态和监听运行时事件的运行时代理之一进行交互。

向 V8 发送 HeapProfiler.takeHeapSnapshot 或 HeapProfiler.stopTrackingHeapObjects 命令时，不能将 reportProgress 设置为 true。

History

Version	Changes
v18.0.0	Passing an invalid callback to the `callback` argument now throws `ERR_INVALID_ARG_TYPE` instead of `ERR_INVALID_CALLBACK`.
v8.0.0	Added in: v8.0.0

method <string>
params <Object>
callback <Function>

Posts a message to the inspector back-end. callback will be notified when a response is received. callback is a function that accepts two optional arguments: error and message-specific result.

session.post('Runtime.evaluate', { expression: '2 + 2' },
             (error, { result }) => console.log(result));
// Output: { type: 'number', value: 4, description: '4' }

The latest version of the V8 inspector protocol is published on the Chrome DevTools Protocol Viewer.

Node.js inspector supports all the Chrome DevTools Protocol domains declared by V8. Chrome DevTools Protocol domain provides an interface for interacting with one of the runtime agents used to inspect the application state and listen to the run-time events.

You can not set reportProgress to true when sending a HeapProfiler.takeHeapSnapshot or HeapProfiler.stopTrackingHeapObjects command to V8.