Category: JavaScript

Sometimes, we want to call a parent component’s method within a component with Vue.js.

In this article, we’ll look at how to call a parent component’s method within a component with Vue.js.

How to call a parent component’s method within a component with Vue.js?

To call a parent component’s method within a component with Vue.js, we can get the parent component’s method from this.$parent.

For instance, we write

<script>
export default {
  //...
  methods: {
    someMethod() {
      this.$parent.someMethod();
    },
  },
  //...
};
</script>

to call the parent’s someMethod method with this.$parent.someMethod();.

Conclusion

To call a parent component’s method within a component with Vue.js, we can get the parent component’s method from this.$parent.

Sometimes, we want to access properties of an object in a Vuetify v-select with Vue.js.

In this article, we’ll look at how to access properties of an object in a Vuetify v-select with Vue.js.

How to access properties of an object in a Vuetify v-select with Vue.js?

To access properties of an object in a Vuetify v-select with Vue.js, we can set the item-text prop to the property that we want to render as the drop down options’ text.

For instance, we write

<template>
  <div>
    <v-select
      :items="categories"
      v-model="category"
      name="category"
      item-text="name"
      label="Select a category"
    />
  </div>
</template>

to set the item-text prop to 'name' so that the value of the name property of each item in categories would be rendered as the text for each option.

Conclusion

To access properties of an object in a Vuetify v-select with Vue.js, we can set the item-text prop to the property that we want to render as the drop down options’ text.

Sometimes, we want to add a file upload input with Vuetify.

In this article, we’ll look at how to add a file upload input with Vuetify.

How to add a file upload input with Vuetify?

To add a file upload input with Vuetify, we can add a v-btn button with a hidden file input.

For instance, we write

<template>
  <div>
    <v-btn color="success" @click="$refs.inputUpload.click()">
      select file
    </v-btn>
    <input v-show="false" ref="inputUpload" type="file" @change="onChange" />
  </div>
</template>

to add a Vuetify button with v-btn.

And we add the file input and assign a ref to it with

<input v-show="false" ref="inputUpload" type="file" @change="onChange" />

We add ref="inputUpload" so $refs.inputUpload is set to the file input.

Then we open the file selector window on button click with

@click="$refs.inputUpload.click()"

And we hide the input with

v-show="false"

Conclusion

To add a file upload input with Vuetify, we can add a v-btn button with a hidden file input.

Sometimes, we want to use a Vuex store in an Axios interceptor with Vue.js.

In this article, we’ll look at how to use a Vuex store in an Axios interceptor with Vue.js.

How to use a Vuex store in an Axios interceptor with Vue.js?

To use a Vuex store in an Axios interceptor with Vue.js, we can import the store and use it directly.

For instance, we write

import axios from "axios";
import store from "your/store/path/store";

axios.interceptors.request.use(
  (config) => {
    const token = store.getters.token;
    if (token) {
      config.headers.Authorization = `Bearer ${token}`;
    }
    return config;
  },
  (err) => {
    return Promise.reject(err);
  }
);

to import the Vuex store instance with

import store from "your/store/path/store";

Then we get the token getter value with store.getters.token.

Conclusion

To use a Vuex store in an Axios interceptor with Vue.js, we can import the store and use it directly.

Sometimes, we want to remove an element from a list with Vue.js.

In this article, we’ll look at how to remove an element from a list with Vue.js.

How to remove an element from a list with Vue.js?

To remove an element from a list with Vue.js, we can use the JavaScript array splice method.

For instance, we write

<script>
export default {
  //...
  methods: {
    removeElement(index) {
      this.items.splice(index, 1);
    },
  },
  //...
};
</script>

to add the removeElement method that takes the index of the item we want to remove from the this.items array.

In it, we call this.items.splice with index and 1 to remove the item from this.items with the given index.

Conclusion

To remove an element from a list with Vue.js, we can use the JavaScript array splice method.