What are Methods?
Methods in Vue.js are simple JavaScript functions defined within the methods object of a Vue component. They are called directly from the template or within other methods using this keyword. Methods are suitable for performing actions, such as event handling, form submissions, or any other imperative logic.
Syntax:
export default {
data() {
return {
// data properties
};
},
methods: {
methodName() {
// method logic
}
}
}
Example: The below code implements Vue methods to create a counter.
<!-- App.vue file -->
<template>
<div>
<p>Value: {{ value }}</p>
<button @click="increment">
Increment
</button>
<p>
Sum (Value+5):
{{ calculateSum() }}
</p>
</div>
</template>
<script>
export default {
data() {
return {
value: 10
};
},
methods: {
increment() {
this.value++;
},
calculateSum() {
return this.value + 5;
}
}
}
</script>
Output:
Benefits of Using Methods
- Methods provide a clear and explicit way to define behavior within Vue components.
- They are reusable and can be called from multiple places within the component.
- Methods can accept parameters, allowing for dynamic behavior based on input.
Methods vs Computed in Vue
Vue.js, with its simplicity and flexibility, has become a popular choice for building dynamic web applications. Among its many features, Vue provides two main ways to perform data manipulation and calculations within components: methods and computed properties. While they might seem similar at first glance, understanding the differences between them is crucial for effectively managing your Vue applications.
Table of Content
- What are Methods?
- What are Computed Properties?
- Use cases of each one of them
- Which is Better to Use: Methods or Computed Properties and Why?
- Differences between Methods and Computed Properties
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