javascript - 在 vuejs 中为按钮添加键盘快捷键

Question

我有一个按钮，用鼠标单击它时可以执行某些操作。我希望在按下键盘的向上箭头键时也能触发相同的方法。

<button @click="doSomething()"> PRESS ME </button>

doSomething(){
  console.log('clicked')
}

所以在这个例子中，我想在按下键盘的向上箭头时console.log('clicked')。我怎样才能做到这一点？

Answer 1

您可以使用 onkeystroke from vueuse

<template>
  <div>
    <button @click="doSomething">btn</button>
  </div>
</template>

<script setup>
import { onKeyStroke } from '@vueuse/core';

const doSomething = () => {
  console.log('do something');
}

onKeyStroke(['ArrowUp'], (e) => {
  doSomething();
});
</script>

another demo here

stackblitz.com不支持<script setup>所以在这个demo中，写成setup()

---

更新

没有库的纯js:

<template>
    <div>
        <button
            @click="doSomething">
            btn
        </button>
    </div>
</template>

<script setup>
import { onMounted, onBeforeUnmount } from 'vue';

const doSomething = () => {
    console.log('doSomething');
};

const userClickArrowUp = ({ code }) => {
    if (code === 'ArrowUp') {
        doSomething();
    }
};

onMounted(() => {
    document.addEventListener('keyup', userClickArrowUp, true);
})

onBeforeUnmount(() => {
    document.removeEventListener('keyup', userClickArrowUp, true);
})

</script>