Vue监听文本框实时输入限制输入长度

  <textarea v-model="value" placeholder="输入内容" @input="inputArea()"></textarea>

 new Vue({
        el: ".box",
        data: {
            value: "",
            maxLength: 100,
            currentLength: 0
        },
         methods: {
	        inputArea() {
              this.currentLength = this.value.length
              if (this.currentLength > this.maxLength) {
                  this.currentLength = 100
                  this.value = this.value.slice(0, 100)
              }
          },
      }
  })