devtools_evaluate

Evaluate JavaScript in the page (or a specific frame/context, or the paused call frame) and return the value or the exception. Objects come back as previews with an objectId for devtools_console inspect. awaitPromise defaults to true.

Parameters

integer

Target tab id from browser_tabs, which lists tabs across all windows. Defaults to the agent’s most recently opened usable tab, or the only usable tab. Otherwise select a listed tabId.

string

required

integer

Execution context id from devtools_sources frames

string

Frame id; picks its default context

string

Evaluate in a paused call frame (devtools_debugger stack)

boolean

Default true; false keeps a live object handle

integer

Range: 0 to 4.

Example

{
  "tabId": 1234,
  "expression": "document.title"
}

In the paused call frame

{
  "tabId": 1234,
  "expression": "user.id",
  "callFrameId": "{\"ordinal\":0,\"injectedScriptId\":2}"
}

Browser automation

Developer tools

Parameters

Example

​Parameters

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Parameters

Example