如何在另一个函数中的函数内部使用数组中的值？

Question

I created a function in Javascript that convert decimal numbers to binary, and I used an array to store the binary numbers, and made the function returns the array, what I want is, how do I get the values of that array and use it outside the function or in another function?

thats the function I was talking about, and that array I want is called numArray.

  function decimalToBinary(Num) { let bits = ''; let rem = Num; for(let i = 7; i >= 0; i--) { let divisor = Math.pow(2, i); let bitValue = Math.floor(rem / divisor); bits = bits + bitValue; rem = rem % divisor; } let numArray = []; for(let i = 0; i < bits.length; i++){ let bit = bits.charAt(i); let binaryNums = parseInt(bit); numArray.push(binaryNums); } return numArray; } /* what I want to do is to use a specific value from inside that array and use inside a second function, and then use if-statement to get the result I want */ function second() { //if-statement if(numArray[2] === 1){ //do something }else{ //do something else } } 

Answer 1

var binary = [] ;
function decimalToBinary(Num) {
    // do some logic push the output in binary
return binary; 
}

function second(argument){
 //Here you can access the binary
}

PS:- This is anti pattern if you update your question i can tell some more way to do it.