动态加载recaptcha脚本

Question

我想动态加载脚本，比如recaptcha，因为我只想在Register.Vue / login.Vue组件中加载

<script src="https://www.google.com/recaptcha/api.js?onload=vueRecaptchaApiLoaded&render=explicit" async defer>
</script>

如果我将脚本标记放置在Vue文件中，就会得到以下错误：

  - Templates should only be responsible for mapping the state to the UI. Avoid
placing tags with side-effects in your templates, such as <script>, as they will
 not be parsed.

我如何解决这个问题呢？

Answer 1

在登录Vue页面中添加：

methods: {

  // create 
  createRecaptcha () {
    let script = document.createElement('script')
    script.setAttribute('async', '')
    script.setAttribute('defer', '')
    script.id = 'recaptchaScript'
    script.src = 'https://www.google.com/recaptcha/api.js?onload=vueRecaptchaApiLoaded&render=explicit'
    script.onload = function () {
      document.getElementsByTagName('head')[0].appendChild(script)
    }
  },
  
  // remove
  removeRecaptcha () {
    document.getElementById('recaptchaScript').remove()
  }

},

// your code ...

mounted () {
  this.createRecaptcha()
},

beforeDestroy () {
  this.removeRecaptcha()
}