SOURCE

function orderHandleFn(arr) {
    const p1 = Promise.resolve(arr[0])
    const p2 = Promise.resolve(arr[1])

   const p = Promise.resolve(p1)
   p.then(value => {
       console.log(value, 'value')
   })
}

function f1() {
    setTimeout(() => {
        console.log('f1')
    }, 200)
    
}

function f2() {
    setTimeout(() => {
        console.log('f2')
    }, 100)
    
}

orderHandleFn([f1, f2])

<div id="box"></div>

#box{
    width: 100px;
    height: 100px;
    /* background-color: red; */
}