Struggling to comprehend the filtering arguments in VueJS?

Question

Struggling to comprehend the filtering arguments in VueJS?

While going through the VueJS Filter(orderby) API documentation, I came across some confusion regarding the arguments. Below is a sample for reference:

Arguments:
   {String | Function} targetStringOrFunction
   "in" (optional delimiter)
   {String} [...searchKeys]

I would appreciate any help or clarification on this. Thank you!

javascript vue.js

Answer 1

Answer №1

According to the information provided in the Documentation, it is mentioned that the filter filterBy is specifically designed for directives that require Array values, such as v-for.

As for the arguments:

For targetStringOrFunction argument :

If you have an array of strings and wish to filter it based on a value from an input field, you can achieve this by utilizing filterBy in the following manner:

    new Vue({
    el: '...',

    data: {
        searchedValue: '' // Leaving it empty will display all results
    }
    ...
});

In the HTML:

<div v-for="value in values | filterBy searchedValue">

You can connect the searchedValue to an input field for added functionality.

Refer to the example below for using functions.

For in and {String} [...searchKeys] arguments :

If you have an array of users, with properties like firstName and lastName, and want to filter them based on a specific value, you can employ filterBy as shown below:

<div v-for="user in users | filterBy searchedValue in 'firstName'">

Alternatively, you can search through multiple keys:

<div v-for="user in users | filterBy searchedValue in 'firstName' 'lastName'">

Additionally, you can create a function to encapsulate your code like this:

var demo = new Vue({
    el: '#demo',
    data: {
        searchedValue: '',

        users: [
          {firstName: 'John', lastName:'Doe'},
          {firstName: 'David', lastName:'Bazz'},
          {firstName: 'Peter', lastName:'Foo'},
        ]
    },
    methods: {
      myFilter: function(user) {
          return user.firstName == searchedValue; //Or any other condition you prefer
      }
    },
})

I hope that helps :)

Answer 2

According to the information provided in the Documentation, it is mentioned that the filter filterBy is specifically designed for directives that require Array values, such as v-for.

As for the arguments:

For targetStringOrFunction argument :

If you have an array of strings and wish to filter it based on a value from an input field, you can achieve this by utilizing filterBy in the following manner:

    new Vue({
    el: '...',

    data: {
        searchedValue: '' // Leaving it empty will display all results
    }
    ...
});

In the HTML:

<div v-for="value in values | filterBy searchedValue">

You can connect the searchedValue to an input field for added functionality.

Refer to the example below for using functions.

For in and {String} [...searchKeys] arguments :

If you have an array of users, with properties like firstName and lastName, and want to filter them based on a specific value, you can employ filterBy as shown below:

<div v-for="user in users | filterBy searchedValue in 'firstName'">

Alternatively, you can search through multiple keys:

<div v-for="user in users | filterBy searchedValue in 'firstName' 'lastName'">

Additionally, you can create a function to encapsulate your code like this:

var demo = new Vue({
    el: '#demo',
    data: {
        searchedValue: '',

        users: [
          {firstName: 'John', lastName:'Doe'},
          {firstName: 'David', lastName:'Bazz'},
          {firstName: 'Peter', lastName:'Foo'},
        ]
    },
    methods: {
      myFilter: function(user) {
          return user.firstName == searchedValue; //Or any other condition you prefer
      }
    },
})

I hope that helps :)

Struggling to comprehend the filtering arguments in VueJS?

Answer №1

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