Vue 侦听器的语法? - V2EX
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x1aoYao

Vue 侦听器的语法?

  •   
  •   x1aoYao Nov 5, 2020 3042 views
    This topic created in 2038 days ago, the information mentioned may be changed or developed.

    官方文档示例:

    watch: { // 如果 `question` 发生改变，这个函数就会运行 question: function (newQuestion, oldQuestion) { this.answer = 'Waiting for you to stop typing...' this.debouncedGetAnswer() } },

    但今天第一次见这样写的:

    watch: { question: { unknown: true, handler(val) { this.do(val) } } },

    google 了下也没找到, 请问下是什么意思?

  • question
  • swer
  • val
  • Watch
    5 replies    2020-11-05 21:42:09 +08:00
    airyland
        1
    airyland  
       Nov 5, 2020
    他也是写错的吧，应该是 immediate: true
    vecZro
        2
    vecZro  
       Nov 5, 2020   1
    https://cn.vuejs.org/v2/api/#watch
    x1aoYao
        3
    x1aoYao  
    OP
       Nov 5, 2020
    @vecZro 感谢!
    x1aoYao
        4
    x1aoYao  
    OP
       Nov 5, 2020
    @airyland 没有, 别人确实是 immediate, 只是我以为这只是个业务变量名改的... 现在看到文档了.
    Curtion
        5
    Curtion  
       Nov 5, 2020   1
    说明一字不漏得看文档是多么的重要
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