SOURCE

let a = [8, 129, 128, 4, 21, 0, 0, 0, 0, 29, 0, 0, 0, 0, 34, 16, 10, 14, 8, 198, 195, 144, 11, 18, 1, 48, 26, 0, 50, 0, 64, 100]
// let a = [8, 129, 128, 4, 21, 0, 0, 0, 0, 29, 0, 0, 0, 0, 34, 16, 10, 14, 8, 198, 195, 144, 11, 18, 1, 48, 26, 0, 50, 0, 64, 100]
function Uint8ArrayToString(fileData){
    var dataString = "";
    for (var i = 0; i < fileData.length; i++) {
        dataString += String.fromCharCode(fileData[i]);
    }
    return dataString
}
// console.log(Uint8ArrayToString(a))


function to16(num){
    return num.toString(16).padStart(2,'0')
}


function to16All(arr){
    let res = []
    arr.forEach((v,i)=>{
        if(i%2==0){
            res.push(to16(a[i])+to16(a[i+1]))
        }
    })
    return res
}

console.log(to16All(a))


function to10All(arr){
    let res = []
    arr.forEach((v,i)=>{
        let l = parseInt(v.slice(0,2),16)
        let r = parseInt(v.slice(-2),16)
        res.push(l,r)
    })
    return res
}
// let b = [   "0881","8004",'1500','0000','001d','0000','0000','222c',
//             '0a2a','08b0','9301','1201','301a','0022','0431','3133',
//             '3432','0038','0040','0052','005a','117b','2264','6576',
//             '6963','6522','3a22','3131','3334','227d' ]
let b = [   "0887","8004",'1500','0000','001d','0000','0000','2209',
            '2207','08d0','9301','1201','30']

// let b = [   "0881","8004",'1500','0000','001d','0000','0000','2210',
//             '0a0e','08fc','fcdb','0b12','0130','1a00','3200','4064' ]
console.log(to10All(b))

console.log([...Array(3)].map(v=>Math.floor(Math.random()*256)))