Error: The use of "let" as a lexically bound identifier is not permitted

Currently working with vue.js and encountering the error message "Uncaught SyntaxError: let is disallowed as a lexically bound name". When trying to troubleshoot, I'm faced with a blank screen and this error appearing in the console.

I've searched online for solutions but haven't found anything useful so far.

This is the Vue code I am using:


    let Task = {
      props: ['task'],
      template: `
       <div>
        <div class="tasks">
          {{ task.body }}
        </div>
       </div>
    `

    },

     let Tasks = {
       components:{
         'task': Task
       },

       data() {
         return {
           tasks: [
            {id: 1, body: 'Task One', done: false }
           ],
         }
       },

       template: `
        <div>
       <task></task>
           <form action="">
             form
           </form>
      </div>
      `
     },

      let app = new Vue({
        el:'#app',
        components: {
         'tasks': Tasks,
         'task': Task
       }
     })

Answer №1

When separating your declarations with commas, it is important not to repeat the keyword let. You should either remove let from each declaration, or use semi-colons instead.

For example:

let x = 10, y = "hello", z = function(){}; // This is correct
let m = {}; let n = 20; // This is correct
let p = {}, let q = 30; // This is incorrect -- will result in an error

Answer №2

const Task = {
  props: ['task'],
  template: `
   <div>
    <div class="tasks">
      {{ task.body }}

    </div>
   </div>
`

};

 const Tasks = {
   components:{
     'task': Task
   },

   data() {
     return {
       tasks: [
        {id: 1, body: 'Task One', done: false }
       ],
     }
   },

   template: `
    <div>
   <task></task>
       <form action="">
         form
       </form>
  </div>
  `
 };

  const app = new Vue({
    el:'#app',
    components: {
     'tasks': Tasks,
     'task': Task
   }
 })

You included some commas where semicolons should have been used

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