Tips for saving information in an array with Vue.js?

Question

Tips for saving information in an array with Vue.js?

I am working on a task where I need to fetch data from an API and store only the values that are marked as "true" in a variable. The API response is listed below:

API Output Data

     {
      "BNG-JAY-137-003": false,
       "BNG-JAY-137-004": true, 
        "BNG-JAY-137-005": false 
       }

Shown below is the function I am using. It aims to filter out and save the data with a value of true into a separate array. In this code snippet, selected_data represents the API data.

    on(){
    for(let key in this.selected_data) {
        if(this.selected_data[key]) {
       // At this point, I want to collect the true values into an array.
       }
      }
     }

javascript arrays vue.js

Answer 1

Answer №1

If you're looking to achieve this task, there are a few different approaches you can take. One option is to utilize the Object.keys method along with filter:

const selectedItems = this.selectedItems;
const keyArray = Object.keys(selectedItems).filter(key => selectedItems[key]);

Another way, similar to your initial code snippet, is to simply use the push method to add keys to an array:

const selectedItems = this.selectedItems;
const keyArray = [];

for (const key in selectedItems) {
  if (selectedItems[key]) {
    keyArray.push(key);
  }
}

In a Vue context, you could potentially implement this as a computed property that returns the desired array. Alternatively, you might store it in a data property by assigning the array using this.arrayName = keyArray at the end of the function.

Answer 2

If you're looking to achieve this task, there are a few different approaches you can take. One option is to utilize the Object.keys method along with filter:

const selectedItems = this.selectedItems;
const keyArray = Object.keys(selectedItems).filter(key => selectedItems[key]);

Another way, similar to your initial code snippet, is to simply use the push method to add keys to an array:

const selectedItems = this.selectedItems;
const keyArray = [];

for (const key in selectedItems) {
  if (selectedItems[key]) {
    keyArray.push(key);
  }
}

In a Vue context, you could potentially implement this as a computed property that returns the desired array. Alternatively, you might store it in a data property by assigning the array using this.arrayName = keyArray at the end of the function.

Answer 3

Answer №2

You have the option to utilize a computed property:

computed: {
    valid_selected_data: function() {
        return Object.keys(this.selected_data).reduce((acc, key) => {
            if(this.selected_data[key]) {
                acc[key] = this.selected_data[key];
            }

            return acc;
        }, {});
    }
}

This piece of code will generate a new object containing only the true values from your selected_data object.

If you prefer to have an array with just the true keys, you can try the following approach:

computed: {
    valid_selected_data: function() {
        return Object.keys(this.selected_data).filter((key) => this.selected_data[key]);
    }
}

Answer 4

You have the option to utilize a computed property:

computed: {
    valid_selected_data: function() {
        return Object.keys(this.selected_data).reduce((acc, key) => {
            if(this.selected_data[key]) {
                acc[key] = this.selected_data[key];
            }

            return acc;
        }, {});
    }
}

This piece of code will generate a new object containing only the true values from your selected_data object.

If you prefer to have an array with just the true keys, you can try the following approach:

computed: {
    valid_selected_data: function() {
        return Object.keys(this.selected_data).filter((key) => this.selected_data[key]);
    }
}

Tips for saving information in an array with Vue.js?

Answer №1

Answer №2

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