Yet another module for extracting callsites (a.k.a. stack-frames) from
npm install error-callsites
var callsites =var err = 'foo'var stack =console
The module exposes a single function which expects an
Error object as
the first arguemnt:
var arr =
The function returns an array of callsite objects - one for each frame in the stack trace.
Each element in the returned array is a V8 callsite object and in turn reponds to the following V8 functions:
callsite.getThis()- returns the value of this
callsite.getTypeName()- returns the type of this as a string. This is the name of the function stored in the constructor field of this, if available, otherwise the object's [[Class]] internal property.
callsite.getFunction()- returns the current function
callsite.getFunctionName()- returns the name of the current function, typically its name property. If a name property is not available an attempt will be made to try to infer a name from the function's context.
callsite.getMethodName()- returns the name of the property of this or one of its prototypes that holds the current function
callsite.getFileName()- if this function was defined in a script returns the name of the script
callsite.getLineNumber()- if this function was defined in a script returns the current line number
callsite.getColumnNumber()- if this function was defined in a script returns the current column number
callsite.getEvalOrigin()- if this function was created using a call to eval returns a CallSite object representing the location where eval was called
callsite.isToplevel()- is this a toplevel invocation, that is, is this the global object?
callsite.isEval()- does this call take place in code defined by a call to eval?
callsite.isNative()- is this call in native V8 code?
callsite.isConstructor()- is this a constructor call?