SOURCE

class Stack{
    constructor() {
        this.items = []
    };
    push(ele){
        this.items.push(ele)
    }
    pop(){ //从栈顶删除
        return this.items.pop()
    }
    peek(){  //返回栈顶元素
        return this.items[this.items.length-1]
    }
    isEmpty(){
        return this.items.length === 0
    }
    clear(){
        this.items = []
    }
    size(){
        return this.items.length
    }
}

function decimalToBinary(decNumber){
    const remStack = new Stack()
    let number = decNumber
    let binaryNumber = ""
    while(number > 0){
        let dec = Math.floor(number%2)
        remStack.push(dec)
        number = Math.floor(number/2)
    }

    while(!remStack.isEmpty()){
        binaryNumber+=remStack.pop().toString()
    }
    // console.log(remStack)
    return binaryNumber
}


console.log(decimalToBinary(233))