Guide to accessing object items in v-for in VueJs

Question

Guide to accessing object items in v-for in VueJs

Upon inspection, the following results are being displayed:

https://i.sstatic.net/oF4Qe.png

https://i.sstatic.net/21aHB.png

In the Vue template code provided:

<select class="form-select" v-model="post_format.wpml_language">

<option  v-for="(lang, index) in wpml_languages" :value="lang">{{lang}} {{index}}</option>

</select>

The desired outcome is to have the value attribute of the option element represent the language code (en/es) and display the Language name.

The challenge lies in accessing the object within the vue code to achieve the desired formatting. Attempts made so far include:

<select class="form-select" v-model="post_format.wpml_language">
<option  v-for="(lang, index) in wpml_languages" :value="lang[index]">{{lang[index]}}</option> 
</select>

Your input on this matter would be greatly valued

javascript vue.js

Answer 1

Answer №1

One recommendation is to enhance your object by separating your code and language into distinct values.

this.languages.filter(lang =>{
  var code = Object.keys(lang)[0];
  lang.code = code;
  lang.value = lang[code];
});

Implementing this adjustment can significantly improve the readability of your code. Here is a helpful Codesandbox link for reference.

Answer 2

One recommendation is to enhance your object by separating your code and language into distinct values.

this.languages.filter(lang =>{
  var code = Object.keys(lang)[0];
  lang.code = code;
  lang.value = lang[code];
});

Implementing this adjustment can significantly improve the readability of your code. Here is a helpful Codesandbox link for reference.

Answer 3

Answer №2

A better approach would be to avoid using lang[index] when dealing with nested objects like in this case. The loop index is not necessary when iterating through each member of 'lang'. Instead, it would be more practical to use the key as the option value ("en") and the value as the displayed text ("English"). Although not the most elegant solution, the following code snippet can still achieve the desired outcome:

<select class="form-select" v-model="post_format.wpml_language">
    <option  v-for="(lang, index) in wpml_languages" :value="Object.keys(lang)[0]">
        {{ lang[0] }}
    </option> 
</select>

Answer 4

A better approach would be to avoid using lang[index] when dealing with nested objects like in this case. The loop index is not necessary when iterating through each member of 'lang'. Instead, it would be more practical to use the key as the option value ("en") and the value as the displayed text ("English"). Although not the most elegant solution, the following code snippet can still achieve the desired outcome:

<select class="form-select" v-model="post_format.wpml_language">
    <option  v-for="(lang, index) in wpml_languages" :value="Object.keys(lang)[0]">
        {{ lang[0] }}
    </option> 
</select>

Guide to accessing object items in v-for in VueJs

Answer №1

Answer №2

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