no-use-before-define triggers for variables defined below a function even if variable will be defined when a function using that variable is called.

What version of ESLint are you using? 2.12.0

What parser (default, Babel-ESLint, etc.) are you using? babel-eslint

Please show your full configuration: https://github.com/AriaFallah/eslint-config-aria/blob/master/index.js

Specific line:

"no-use-before-define": [2, "nofunc"]

What did you do? Please include the actual source code causing the issue.

function x() {
  return myFunc()
}

const myFunc = function() {
  return 5
}

console.log(x())

What did you expect to happen? No errors. This doesn’t result in myFunc is undefined in console because the function is not called before myFunc is defined.

What actually happened? Please include the actual, raw output from ESLint.

error  'myFunc' was used before it was defined  no-use-before-define

[AriaFallah]

@vsemozhetbyt

Right, but that’s only if they’re in the same function scope. If you run the example code I provided in the babel REPL, you’ll get:

[vsemozhetbyt]

I see.