Cancel previous timeout

1 year ago · 90400a09ea
parent b5ec58b936
commit 90400a09ea
1 changed files with 8 additions and 1 deletions
--- a/src/digicode.js
+++ b/src/digicode.js
@ -8,6 +8,9 @@ const display = /** @type {HTMLDivElement} */ (document.getElementById('display'
 const light = /** @type {HTMLDivElement} */ (document.getElementById('light'));
 const keypad = /** @type {HTMLDivElement} */ (document.getElementById('keypad'));

+/** @type {number|null} */
+let taskId = null;
+
 /**
 * @param {number} len
 * @returns {string}
@ -30,6 +33,10 @@ function resetCode() {
 * @param {number} digit
 */
 function composeDigit(digit) {
+  if (taskId !== null) {
+    clearTimeout(taskId);
+    taskId = null;
+  }
  builder += digit.toString();
  display.innerText = builder + '_'.repeat(CODE.length - builder.length);
  light.classList.remove(IS_SUCCESS, IS_ERROR);
@ -37,7 +44,7 @@ function composeDigit(digit) {
    light.classList.add(IS_SUCCESS);
  } else {
    light.classList.add(IS_ERROR);
-    setTimeout(resetCode, DELAY);
+    taskId = setTimeout(resetCode, DELAY);
  }
 }