How can I make a list containing checkboxes attached to an object in a state that a v-for directive toggles (without toggling other checkboxes in the list)?

Question

I'm trying to make a client-side to-do list using VueJS (2.x). This is my HTML:

To-doList

P粉312195700 · Answer

first. It is best to use Function instead of Object in data, otherwise it may cause update errors.

Because Function is only accepted when used in a component definition.

// wrong
data: {
    tasks: []
}

// correct
data() {
    return {
        task: []
    }
}

You cannot directly change the compulated property, which has only one Compulated Getter by default. If you want to handle a compated property, give a computed setter to it.

// wrong
computed: {
    complete(){
      return this.tasks.filter(task => task.done === true);
    },
}

// right
computed: {
    complete: {
        get() {
            return this.tasks.filter(task => task.done === true);
        },
        set(value) {
            this.task.forEach((task, index) => {
                let matched = value.find(({ description }) => description === task.description);
                if(matched) {
                    this.task[index] = matched;
                }
            });
        }
    }
}

Cannot bind values via v-for because vue2 does not recognize changes in the array.

new Vue({
  el: "#app",
  data() {
    return {
      tasks: [
        { description: 'Say Hello', done: true },
        { description: 'Review Code', done: false },
        { description: 'Read Emails', done: false },
        { description: 'Reply to Emails', done: false },
        { description: 'Wash The Dishes', done: true },
        { description: 'Stop Working', done: true },
      ]
    };
  },
  computed : {
    complete: {
      get() {
        return this.tasks.filter(task => task.done === true);
      },
      set(value) {
        this.task.forEach((task, index) => {
          let matched = value.find(({ description }) => description === task.description);
          if(matched) {
              this.task[index] = matched;
          }
        });
      }
    },
    uncomplete: {
      get() {
        return this.tasks.filter(task => task.done === false);
      },
      set(value) {
        this.task.forEach((task, index) => {
          let matched = value.find(({ description }) => description === task.description);
          if(matched) {
              this.task[index] = matched;
          }
        });
      }
    }
  }
});

sssccc

  To-do List
  Completed Tasks!
  
    
      {{ item.description }}
      
    
  
  Uncompleted Tasks!
  
    
      {{ item.description }}