callsites
v4.2.0
Published
Get callsites from the V8 stack trace API
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callsites
Get callsites from the V8 stack trace API
Install
npm install callsites
Usage
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 ofthis
.getTypeName
: Returns the type ofthis
as a string. This is the name of the function stored in the constructor field ofthis
, if available, otherwise the object's[[Class]]
internal property.getFunction
: Returns the current function.getFunctionName
: Returns the name of the current function, typically itsname
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 ofthis
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 numbergetEvalOrigin
: If this function was created using a call toeval
returns a string representing the location whereeval
was called.isToplevel
: Returnstrue
if this is a top-level invocation, that is, if it's a global object.isEval
: Returnstrue
if this call takes place in code defined by a call toeval
.isNative
: Returnstrue
if this call is in native V8 code.isConstructor
: Returnstrue
if this is a constructor call.isAsync()
: Returnstrue
if this call is asynchronous (i.e.await
,Promise.all()
, orPromise.any()
).isPromiseAll()
: Returnstrue
if this is an asynchronous call toPromise.all()
.getPromiseIndex()
: Returns the index of the promise element that was followed inPromise.all()
orPromise.any()
for async stack traces, ornull
if theCallSite
is not an asynchronousPromise.all()
orPromise.any()
call.