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npm install get-caller-file
This is a utility, which allows a function to figure out from which file it was invoked. It does so by inspecting v8's stack trace at the time it is invoked.
Inspired by http://stackoverflow.com/questions/13227489
note: this relies on Node/V8 specific APIs, as such other runtimes may not work
``bash`
yarn add get-caller-file
Given:
`js
// ./foo.js
const getCallerFile = require('get-caller-file');
module.exports = function() {
return getCallerFile(); // figures out who called it
};
`
`js
// index.js
const foo = require('./foo');
foo() // => /full/path/to/this/file/index.js
`
* getCallerFile(position = 2)`: where position is stack frame whos fileName we want.