Determine if a JavaScript function is a bound function

Answer 1

Based on previous answers, I create a function to determine:

function isBoundFunction(func) {
    if(typeof func.prototype === 'object') return false
    try {
        new func()
    }
    catch(e) {
        return false
    }
    return true
}

This function determine three type of functions: 1. original function, whose prototype is object, 2. arrow function, which can not be used as constructor, 3. bound function.