retrieve a string from a given array

Question

retrieve a string from a given array

I need to retrieve a string from an array in vue and display it on the screen. Here is the method I created for this purpose:

displayFixturesName() {
                const result = this.selectedFixture.toString();
                document.getElementById('resultFixture').innerHTML = result.join()

            }

The variable this.selectedFixture holds an array of my choice

To display the selection, I use the following code snippet

<p class="subtitle" id="resultFixture">{{displayFixturesName()}}</p>

However, when I run this code, I encounter an error message in the console stating:

[Vue warn]: Error in render: "TypeError: result.join is not a function"

javascript vue.js

Answer 1

Answer №1

To efficiently handle this task in Vue, utilize a computed property to retrieve the desired string:

computed: {
  displayFixturesName() {
    return this.selectedFixture.join(', ');
  }
}

In the template section, include the following:

<p class="subtitle">{{ displayFixturesName }}</p>

Some elements have been omitted like the id (consider using ref instead if necessary) and removing the parentheses from displayFixturesName.

It's best to let Vue handle DOM manipulation rather than doing it manually. There are certain exceptions for cases such as integrating third-party libraries or obtaining size measurements, but these instances are uncommon.

Refer to the documentation on computed properties here:

https://v2.vuejs.org/v2/guide/computed.html#Computed-Properties

Answer 2

To efficiently handle this task in Vue, utilize a computed property to retrieve the desired string:

computed: {
  displayFixturesName() {
    return this.selectedFixture.join(', ');
  }
}

In the template section, include the following:

<p class="subtitle">{{ displayFixturesName }}</p>

Some elements have been omitted like the id (consider using ref instead if necessary) and removing the parentheses from displayFixturesName.

It's best to let Vue handle DOM manipulation rather than doing it manually. There are certain exceptions for cases such as integrating third-party libraries or obtaining size measurements, but these instances are uncommon.

Refer to the documentation on computed properties here:

https://v2.vuejs.org/v2/guide/computed.html#Computed-Properties

Answer 3

Answer №2

Your issue is not related to VUE, but to the proper usage of the .join() method.
As mentioned by Jax-p in a comment on Stack Overflow, this method should be applied to arrays, not strings. Your attempt to use .join() with a string will not work correctly.

To help clarify, I have simplified your example using plain JavaScript to show how you should utilize the .join() method.

const fixture = ["selected", "Fixture"];
console.log(fixture.join());

Answer 4

Your issue is not related to VUE, but to the proper usage of the .join() method.
As mentioned by Jax-p in a comment on Stack Overflow, this method should be applied to arrays, not strings. Your attempt to use .join() with a string will not work correctly.

To help clarify, I have simplified your example using plain JavaScript to show how you should utilize the .join() method.

const fixture = ["selected", "Fixture"];
console.log(fixture.join());

retrieve a string from a given array

Answer №1

Answer №2

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