“Tastaturpfeilereignis Handling JavaScript” Code-Antworten

Tastaturpfeilereignis Handling JavaScript

// function responding to keyboard event
function control(e) {
  if (e.key !== undefined) {
    const pressedKey = e.key;
    switch (pressedKey) {
      case "ArrowLeft":
        console.log("Left arrow pressed");
        break;
      case "ArrowUp":
        console.log("Up arrow pressed");
        break;
      case "ArrowRight":
        console.log("Right arrow pressed");
        break;
      case "ArrowDown":
        console.log("Down arrow pressed");
    }
    // or alternatively
    // if (pressedKey === "ArrowLeft") {
    //   console.log("Left arrow pressed");
    // } else if (pressedKey === "ArrowUp") {
    //   console.log("Up arrow pressed");
    // } else if (pressedKey === "ArrowRight") {
    //   console.log("Right arrow pressed");
    // } else if (pressedKey === "ArrowDown") {
    //   console.log("Down arrow pressed");
  }
}

// Add event listener to deal with keyboard events through the control function
document.addEventListener("keyup", control);