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Radashi

isClass

Determine if a value was declared with `class` syntax

148 bytes

Usage

This function returns true if the provided value is a constructor declared with the ES6 class keyword.

import * as _ from 'radashi'


class MyClass {}


function OldSchoolClass() {
  this.foo = 'bar'
}


_.isClass(MyClass) // => true
_.isClass(Error) // => false
_.isClass(OldSchoolClass) // => false
_.isClass('abc') // => false
_.isClass({}) // => false
_.isClass(undefined) // => false