"Implementing a filter with multiple select options in AngularJS

Question

"Implementing a filter with multiple select options in AngularJS

As a beginner delving into Angular, I find myself working with a multiple select feature to filter a list by name.

<select multiple ng-options="data.name for data in datas" ng-model="filterData">
</select>

Currently, I am able to filter with only one value using the following:

<div class="container " data-ng-repeat="data in datas | filter : filterData[0].name">

However, my goal is to pass an array to the filter so I can filter by multiple values simultaneously.

Is creating my own custom filter the way to achieve this?

{
         "datas": [
            {"name": "first", "id": 1},
            {"name": "two", "id": 2},
            {"name": "three", "id": 3},
        ]
}

Thank you!

javascript angularjs

Answer 1

Answer №1

If you want to create a personalized filter and set specific filter values in advance, follow these steps:

<div class="row " ng-repeat="item in items | customFilter : withKeywords">

var _filterTheseTerms = ["apple", "banana", "orange"];
$scope.withKeywords = function(element) {
    return _filterTheseTerms.some(term) {
        return element.name.includes(term);
    });
}

Answer 2

If you want to create a personalized filter and set specific filter values in advance, follow these steps:

<div class="row " ng-repeat="item in items | customFilter : withKeywords">

var _filterTheseTerms = ["apple", "banana", "orange"];
$scope.withKeywords = function(element) {
    return _filterTheseTerms.some(term) {
        return element.name.includes(term);
    });
}

Answer 3

Answer №2

  Creating a new AngularJS module called 'myApp':

var myApp = angular.module('myApp', []);

  Defining a controller named 'myController' and passing the function to it:

myApp.controller('myController', myController);

  Implementing the myController function that populates data in arrays:

function myController($scope) {
    $scope.datas = [{
      "name": "first",
      "id": 1
    }, {
      "name": "two",
      "id": 2
    }, {
      "name": "three",
      "id": 3
    }, ];

    $scope.filterData = [];

    Setting up a filtering function byArray using item names:

    $scope.byArray = function(myArray) {
      return function(item) {
        return !myArray.some(function(word) {
          return item.name.indexOf(word.name) > -1;             
        });
      };

    }
  }

<div ng-app="myApp" ng-controller="myController">
  <select multiple ng-multible="true" size="3" ng-options="data.name for data in datas" ng-model="filterData">
  </select>
  <div class="container" data-ng-repeat="data in datas | filter : byArray(filterData)">{{data.name}}
  </div>
</div>
<script src="https://code.angularjs.org/1.3.11/angular.js"></script>

Answer 4

  Creating a new AngularJS module called 'myApp':

var myApp = angular.module('myApp', []);

  Defining a controller named 'myController' and passing the function to it:

myApp.controller('myController', myController);

  Implementing the myController function that populates data in arrays:

function myController($scope) {
    $scope.datas = [{
      "name": "first",
      "id": 1
    }, {
      "name": "two",
      "id": 2
    }, {
      "name": "three",
      "id": 3
    }, ];

    $scope.filterData = [];

    Setting up a filtering function byArray using item names:

    $scope.byArray = function(myArray) {
      return function(item) {
        return !myArray.some(function(word) {
          return item.name.indexOf(word.name) > -1;             
        });
      };

    }
  }

<div ng-app="myApp" ng-controller="myController">
  <select multiple ng-multible="true" size="3" ng-options="data.name for data in datas" ng-model="filterData">
  </select>
  <div class="container" data-ng-repeat="data in datas | filter : byArray(filterData)">{{data.name}}
  </div>
</div>
<script src="https://code.angularjs.org/1.3.11/angular.js"></script>

"Implementing a filter with multiple select options in AngularJS

Answer №1

Answer №2

Similar questions

Use ng-class in a P tag to assess a variety of expressions

Forwarding AngularJS events using socket.io with the use of deferred promises

Breaking down a JSON Object in Angular 4: Step-by-step Guide

Utilizing slid.bs.carousel to retrieve values upon slide change

Encapsulate all ASP.NET JSON responses by returning an anonymous object

How to Use Framer Motion in Next.js for window.innerWidth Less Than 768

Ways to show an input box even when there are no results found

Using pre-existing code but with personalized modifications

Determine the dimensions of Expo's React Native Over the Air (OTA) update

Using Query strings in JavaScript: A Quick Guide

Storing information in a loop using AngularJS's ng-repeat functionality

Tips for accessing a variable through request.query

What are some effective ways to address conflicts between select2 versions 3.5 and 4.0?

Is it secure to transmit Tenant ID's as GET parameters to the API in a Multi-Tenant database environment?

passport.js and express: TypeError - Router.use() must be given a middleware function, but instead received a ' + gettype(fn)

Having difficulties retrieving the value of the div in the voting system

Enhance your message inbox experience with jQuery/Javascript features inspired by Gmail, including the ability to select all messages with a checkbox and

Filtering Arrays of Objects: A Guide to Filtering in JavaScript

No data appears to be populating the Javascript data list, yet no errors are being displayed in

The sole focus is on the animation within the div