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[whitespace af248e3] Remove trailing whitespace, to placate git.
| (void 0)
| { "type":"undefined" }
|-
| ({x:1})
| { "type":"object", "class":"Object", "actor":"24" }
{ "from":<i>thread</i>, "type":"detached" }
This indicates that the client has detached from the thread. The thread is now in the <b>Detached</b> state: it can run freely, and no longer reports events to the client. Communications with <i>thread</i> are closed, and the actor name is available for reuse. If the thread had been in the <b>Paused</b> state, the pause actor is closed (because the pause actor is a child of <i>thread</i>).
{ "from":<i>thread</i>, "type":"paused", ... }
where:
* <i>location</i> is the source location of the current point of execution in the global code (see [[#Source_Locations|Source Locations]]);
* <i>environment</i> is a value representing the lexical environment of the current point of execution (see [[#Lexical_Environments|Lexical Environments]]);
A frame for an ordinary JavaScript function call has the form:
{ "actor":<i>actor</i>, "depth":<i>depth</i>, "type":"call", "this":<i>this</i>,
"where":<i>location</i>, "environment":<i>environment</i>,
"callee":<i>callee</i>, "calleeName":<i>calleeName</i>, "arguments":<i>arguments</i> }
You can see here the three nested environment forms, starting with the <tt>environment</tt> property of the top stack frame, reported in the pause:
* The first environment form shows the environment record created by the call to <tt>g</tt>, with the string <tt>"argument to g"</tt> passed as the value of <tt>y</tt>.
* Because <tt>g</tt> is nested within <tt>f</tt>, each function object generated for <tt>g</tt> captures the environment of a call to the enclosing function <tt>f</tt>. Thus, the next thing on <tt>g</tt>'s scope chain is an environment form for the call to <tt>f</tt>, where <tt>"argument to f"</tt> was passed as the vale of <tt>x</tt>.
* Because <tt>f</tt> is a top-level function, the (only) function object for <tt>f</tt> closes over the global object. This is the "type":"object" environment shown as the parent of <tt>f</tt>'s environment record.
