Category: JavaScript

Sometimes, we want to set the height of Vuetify card with Vue.js.

In this article, we’ll look at how to set the height of Vuetify card with Vue.js.

How to set the height of Vuetify card with Vue.js?

To set the height of Vuetify card with Vue.js, we can set the height prop of the v-card component.

For instance, we write

<template>
  <div>
    <v-card height="100%"> ... </v-card>
  </div>
</template>

to set the height prop of the v-card component to 100% to set the height of the card to 100%.

Conclusion

To set the height of Vuetify card with Vue.js, we can set the height prop of the v-card component.

Sometimes, we want to fix Vue Router this.$router.push not working on methods with Vue.js.

In this article, we’ll look at how to fix Vue Router this.$router.push not working on methods with Vue.js.

How to fix Vue Router this.$router.push not working on methods with Vue.js?

To fix Vue Router this.$router.push not working on methods with Vue.js, we should call it with the name or path of the route.

For instance, we write

<script>
//...
export default {
  //...
  methods: {
    pushName() {
      this.$router.push({ name: "Home" });
    },
    pushPath() {
      this.$router.push({ path: "/" });
    },
  },
  //...
};
</script>

to call this.$router.push with an object that has the name set to the name property value of a path that we set when we defined the routes in the pushName method

In pushPath, we call push with an object with the path set to the URL path of the route we want to go to.

Conclusion

To fix Vue Router this.$router.push not working on methods with Vue.js, we should call it with the name or path of the route.

Sometimes, we want to fix window is not defined in Vue.js.

In this article, we’ll look at how to fix window is not defined in Vue.js.

How to fix window is not defined in Vue.js?

To fix window is not defined in Vue.js, we should add the browser property and set it to true in the ESLint config.

For instance, we write

module.exports = {
  //...
  env: {
    browser: true,
    node: true,
  },
  //...
};

to add the env.browser property and set it to true so ESLint will stop throwing the window is not defined error.

Conclusion

To fix window is not defined in Vue.js, we should add the browser property and set it to true in the ESLint config.

Sometimes, we want to watch the change of an element value with Vue.js.

In this article, we’ll look at how to watch the change of an element value with Vue.js.

How to watch the change of an element value with Vue.js?

To watch the change of an element value with Vue.js, we can add a watcher.

For instance, we write

<script>
//...
export default {
  //...
  watch: {
    myValue(val, oldVal) {
      if (val < 50) {
        this.message = "value too low!";
      } else {
        this.message = "value is ok";
      }
    },
  },
  //...
};
</script>

to watch the myValue reactive property for changes.

We get its latest value from val and its previous value from oldVal.

And then we can do whatever we want in the watcher method according to the values.

Conclusion

To watch the change of an element value with Vue.js, we can add a watcher.

Sometimes, we want to change object in array and trigger reactivity with Vue.js

In this article, we’ll look at how to change object in array and trigger reactivity with Vue.js.

How to change object in array and trigger reactivity with Vue.js?

To change object in array and trigger reactivity with Vue.js, we can use the this.$set method.

For instance, we write

<script>
//...
export default {
  //...
  methods: {
    update(index) {
      this.$set(this.arr, index, { ...this.arr[index], foo: "bar" });
    },
  },
  //...
};
</script>

to call this.$set with the this.arr array we want to update, the index of the item we want to update, and the object we want to update the object at the index to.

Calling this.$set will trigger Vue.js to notice the changes in the object in the array that’s changed and re-render the component.

Conclusion

To change object in array and trigger reactivity with Vue.js, we can use the this.$set method.