How can I trigger a series of functions in sequence when a button is clicked using Vue.js?

Question

How can I trigger a series of functions in sequence when a button is clicked using Vue.js?

When I click, I need to call 3 functions in a specific order:

<CButton
  @click=" getBillPrice();
           updateBill();
           postData();"
  type="submit"
  color="primary">Save</CButton>

However, the functions are running in the wrong order. How can I fix this?

Here is an example of my functions for context:

getBillPrice() {
  // Function code here
},

updateBill() {
  // Function code here
},

postData() {
  // Function code here
}

This is just filler text to demonstrate posting code: Lorem ipsum dolor sit amet.

javascript vue.js promise

Answer 1

Answer №1

To improve your code, consider creating a single function that triggers multiple functions instead of putting each one separately on the click event.

<CButton
  @click="onSubmit"
  color="primary">Save</CButton>

methods: {
  onSubmit(){
    this.getBillPrice();
    this.updateBill();
    this.postData()
  },
  ...
}

If your functions are asynchronous, you can utilize async await along with try catch for error handling:

methods: {
  async onSubmit(){
    try{
      await this.getBillPrice();
      await this.updateBill();
      this.postData();
    } catch(err){
      // Handle error.
    }
  },
  ...
}

If async await is not supported in your project, an alternative approach using then/catch could be considered:

methods: {
  onSubmit(){
    this.getBillPrice()
    .then(() => {
       return this.updateBill();
    })
    .then(() => {
       return this.postData();
    })
    .then(() => {
       // Additional code if required
    })
    .catch((err) => {
       // Handle errors here
    })
  },
  ...
}

Answer 2

To improve your code, consider creating a single function that triggers multiple functions instead of putting each one separately on the click event.

<CButton
  @click="onSubmit"
  color="primary">Save</CButton>

methods: {
  onSubmit(){
    this.getBillPrice();
    this.updateBill();
    this.postData()
  },
  ...
}

If your functions are asynchronous, you can utilize async await along with try catch for error handling:

methods: {
  async onSubmit(){
    try{
      await this.getBillPrice();
      await this.updateBill();
      this.postData();
    } catch(err){
      // Handle error.
    }
  },
  ...
}

If async await is not supported in your project, an alternative approach using then/catch could be considered:

methods: {
  onSubmit(){
    this.getBillPrice()
    .then(() => {
       return this.updateBill();
    })
    .then(() => {
       return this.postData();
    })
    .then(() => {
       // Additional code if required
    })
    .catch((err) => {
       // Handle errors here
    })
  },
  ...
}

How can I trigger a series of functions in sequence when a button is clicked using Vue.js?

Answer №1

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