Same function for different buttons - Javascript

I'm not sure if it's possible, but I'd like to use one unique function to trigger 4 different buttons to count a value (+ and -). But there are four different span values, for example, if I trigger forest it will only add or remove from forest, if I do it for town it will only trigger for town, and so on.

// set inital value to zero  let count = 0;  // select value and buttons  const valueForest = document.querySelector("#valueForest");  const btns = document.querySelectorAll(".btn");    btns.forEach(function (btn) {    btn.addEventListener("click", function (e) {      const styles = e.currentTarget.classList;      if (styles.contains("decrease")) {        count--;      } else if (styles.contains("increase")) {        count++;      } else {        count = 0;      }        if (count > 0) {        valueForest.style.color = "green";      }      if (count < 0) {        valueForest.style.color = "red";      }      if (count === 0) {        valueForest.style.color = "#222";      }      valueForest.textContent = count;    });   });

<div class="scoreDiv">    <h3>Input below the quantity of each tile in the end of the game:</h3>    <div class="scoreItem">        <h4>Forest</h4>        <button class="btn decrease">-</button>        <span class="value" id="valueForest">0</span>        <button class="btn increase">+</button>        <h4>SOMA</h4>    </div>    <div class="scoreItem">        <h4>Town</h4>        <button class="btn decrease">-</button>        <span class="value" id="valueTown">0</span>        <button class="btn increase">+</button>        <h4>SOMA</h4>    </div>    <div class="scoreItem">        <h4>Production</h4>        <button class="btn decrease">-</button>        <span class="value" id="valueProduction">0</span>        <button class="btn increase">+</button>        <h4>SOMA</h4>    </div>    <div class="scoreItem">        <h4>Factory</h4>        <button class="btn decrease">-</button>        <span class="value" id="valueFactory">0</span>        <button class="btn increase">+</button>        <h4>SOMA</h4>    </div>  </div>

from Recent Questions - Stack Overflow https://stackoverflow.com/questions/65375594/same-function-for-different-buttons-javascript Lucas Marodin de paiva