stackback

    0.0.2 • Public • Published

    stackback

    Returns an array of CallSite objects for a captured stacktrace. Useful if you want to access the frame for an error object.

    use

    var stackback = require('stackback');
     
    // error generated from somewhere
    var err = new Error('some sample error');
     
    // stack is an array of CallSite objects
    var stack = stackback(err);

    CallSite object

    From the V8 StackTrace API

    The structured stack trace is an Array of CallSite objects, each of which represents a stack frame. A CallSite object defines the following methods

    getThis: returns the value of this
    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.
    getFunction: returns the current function
    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.
    getMethodName: returns the name of the property of this or one of its prototypes that holds the current function
    getFileName: if this function was defined in a script returns the name of the script
    getLineNumber: if this function was defined in a script returns the current line number
    getColumnNumber: if this function was defined in a script returns the current column number
    getEvalOrigin: if this function was created using a call to eval returns a CallSite object representing the location where eval was called
    isToplevel: is this a toplevel invocation, that is, is this the global object?
    isEval: does this call take place in code defined by a call to eval?
    isNative: is this call in native V8 code?
    isConstructor: is this a constructor call?

    install

    npm install stackback

    Install

    npm i stackback

    DownloadsWeekly Downloads

    27,247

    Version

    0.0.2

    License

    MIT

    Last publish

    Collaborators

    • defunctzombie