DQ

DQ is a esolang about duplicating and discarding values, created by User:Yayimhere.

esolang overview

alphabet

DQ is an incredibly small language. The only symbols are:

symbols:

symbol	description
0	make the stack empty
1	pushes a 1 onto the stack
D	duplicates the top element on the stack
Q	discards the top element on the stack

the order of commands is shuffled every run.

Implementations

Written in JavaScript.

function dq(program)
{
    const stack = [];
    const randomisedProgram = program.split("").sort(() => Math.random() - 0.5);
    for(const character of randomisedProgram)
    {
        switch(character)
        {
            case "0":
                stack.length = 0;
                break;
            case "1":
                stack.push(1);
                break;
            case "D":
                if(stack.length > 0)
                    stack.push(stack[stack.length - 1]);
                break;
            case "Q":
                stack.pop();
                break;
        }
    }
    console.log(...stack);
}

A python interpriter by User:Ractangle:

import random
s=[];p=0
tempi=input()
acti=[]
for _ in tempi:acti.append(_)
random.shuffle(acti)
for _ in acti:
    if _=="0":s.clear()
    if _=="Q":s.pop()
    if _=="D":s.append(s[-1])
    if _=="1":s.append(1)
print(s)

See also

• ℕDQ
• TDQ
• D/Q