callsites

> Get callsites from the V8 stack trace API

Install

``sh
npm install callsites
`

Usage

`js
import callsites from 'callsites';

function unicorn() {
console.log(callsites()[0].getFileName());
//=> '/Users/sindresorhus/dev/callsites/test.js'
}

unicorn();
`

API

Returns an array of callsite objects with 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 string representing the location where eval was called.
- isToplevel: Returns true if this is a top-level invocation, that is, if it's a global object.
- isEval: Returns true if this call takes place in code defined by a call to eval.
- isNative: Returns true if this call is in native V8 code.
- isConstructor: Returns true if this is a constructor call.
- isAsync(): Returns true if this call is asynchronous (i.e. await, Promise.all(), or Promise.any()).
- isPromiseAll(): Returns true if this is an asynchronous call to Promise.all().
- getPromiseIndex(): Returns the index of the promise element that was followed in Promise.all() or Promise.any() for async stack traces, or null if the CallSite is not an asynchronous Promise.all() or Promise.any()` call.