let middleware = [];
middleware.push(next => {
    console.log(1)
    next();
    console.log(1.1)
})
middleware.push(next => {
    console.log(2)
    next();
    console.log(2.1)
})
middleware.push(next => {
    console.log(3)
    next();
    console.log(3.1)
})

let fn = compose(middleware)
fn();


function compose(arr) {
    return () => {
        const next = () => {
            const fn = arr.shift();
            if(fn){
                fn(next)
            }
        }    
        next()
    }
}