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

Similar questions

Implementing optimal techniques to create a JavaScript file for data retrieval in a Node.js application

The AMP HTML file is unable to load due to the robots.txt file on https://cdn.ampproject.org restricting access

Combining broken down values within a loop

What could be the reason for the HTML canvas not displaying anything after a new element is added?

JavaScript strangeness

An instructional HTML/JS dialogue for a linked page

Exploring the contrast of && and ?? in JavaScript

Dynamic Component Interactions in VueJS using Mouse Events

Make sure to prevent losing the global status in Vuex and VueRouter when the page is refreshed

Creating a distinctive vue form component from scratch

Exploring the World of Unit Testing with Jasmine and Sinon Factories

When utilizing auth0, an error occurs during the grunt build process

What is the best way to establish a default search query within the vue-multiselect component?

Angular UI grid: Arranging numbers in a straight line at the decimal point

The IsArray() function in IE8 encounters an issue where it expects an error object

Tips on preventing the opening of a new browser tab by using Ctrl + click

Outdated JavaScript Alert

Boost the frequency of updates in Meteor.observe

Troubleshoot my code for clustering markers on a Google map

Converting HTML to CSV using PHP