What is the best way to create a function library that works seamlessly across all of my Vue.js components?

Question

What is the best way to create a function library that works seamlessly across all of my Vue.js components?

I am currently in the process of developing a financial application using Vue.js and Vuetify. As part of my project, I have created several component files such as

Dashboard.vue
Cashflow.vue
NetWorth.vue
stores.js <- Vue Vuex

Throughout my development, I have realized that there are some core functions that I need to use across all my Vue.js and javascript files. I'm wondering if it would be feasible for me to create a function library that can be accessed by all the components and js files.

function moneyFormat(num)
function IRRCalc(Cashflow)
function TimeValueMoneyCalc(I,N,PV,FV,PMT)
function PerpetualAnnuityCalc(I,PV)
function CarLoanInstallment(V,N)
function HouseLoanInstallment(V,N)

In C programming, including external libraries is straightforward with #include<financial.h>. Is there an equivalent method in JavaScript?

Thank you.

javascript vue.js

Answer 1

Answer №1

Let me share with you 3 different techniques to achieve this:

1. Begin by creating a helper.js file and then importing it into .vue files

// helper.js

export default {
  function formatMoney(num) { // include your logic here}
  
}

// Dashboard.vue

<script>
import helper from "helper.js"  //the path may vary depending on the location of the js file
methods: {
  utilizeHelper(value) {
    helper.formatMoney(value)  
  
  }
}
</script>

2. Another approach is to bind the function to Vue prototype in main.js

Vue.prototype.$formatMoney= function formatMoney(num) {}

Then, in Dashboard.vue, simply call this.$formatMoney(num). No need to import anything

3. Alternatively, you can use mixins. Check online for guidance on how to implement this https://v2.vuejs.org/v2/guide/mixins.html

Answer 2

Let me share with you 3 different techniques to achieve this:

1. Begin by creating a helper.js file and then importing it into .vue files

// helper.js

export default {
  function formatMoney(num) { // include your logic here}
  
}

// Dashboard.vue

<script>
import helper from "helper.js"  //the path may vary depending on the location of the js file
methods: {
  utilizeHelper(value) {
    helper.formatMoney(value)  
  
  }
}
</script>

2. Another approach is to bind the function to Vue prototype in main.js

Vue.prototype.$formatMoney= function formatMoney(num) {}

Then, in Dashboard.vue, simply call this.$formatMoney(num). No need to import anything

3. Alternatively, you can use mixins. Check online for guidance on how to implement this https://v2.vuejs.org/v2/guide/mixins.html

Answer 3

Answer №2

If you want to keep your code organized, one option is to create a single JavaScript file where you store all your helper and utility methods. You can then export each method individually for easy access:

export function formatCurrency(amount) { ... }
export function calculateIRR(cashflows) { ... }
export function calculateTimeValueOfMoney(interestRate, periods, presentValue, futureValue, payments) { ... }
export function calculatePerpetualAnnuity(interestRate, presentValue) { ... }
export function calculateCarLoanInstallment(principal, numberOfPayments) { ... }
export function calculateHouseLoanInstallment(principal, numberOfPayments) { ... }

When you need a specific method, you can simply import it into your project like this:

import { calculateCarLoanInstallment, calculateHouseLoanInstallment } from '/path/to/helper/file';

This approach can be particularly helpful when bundling with tools like webpack as it allows for tree-shaking. This means that only the functions that are actually used in your project will be included in the final bundle, reducing unnecessary bloat.

Answer 4

If you want to keep your code organized, one option is to create a single JavaScript file where you store all your helper and utility methods. You can then export each method individually for easy access:

export function formatCurrency(amount) { ... }
export function calculateIRR(cashflows) { ... }
export function calculateTimeValueOfMoney(interestRate, periods, presentValue, futureValue, payments) { ... }
export function calculatePerpetualAnnuity(interestRate, presentValue) { ... }
export function calculateCarLoanInstallment(principal, numberOfPayments) { ... }
export function calculateHouseLoanInstallment(principal, numberOfPayments) { ... }

When you need a specific method, you can simply import it into your project like this:

import { calculateCarLoanInstallment, calculateHouseLoanInstallment } from '/path/to/helper/file';

This approach can be particularly helpful when bundling with tools like webpack as it allows for tree-shaking. This means that only the functions that are actually used in your project will be included in the final bundle, reducing unnecessary bloat.

Answer 5

Answer №3

If you want to enhance your Vue.js application, consider using Mixins. You can find more information here.

To implement a Mixin in your project, simply add the following code snippet to your main.js:

import Vue from "vue";
import App from "./App.vue";

Vue.mixin({
  methods: {
    helloWorld() {
      alert("Hello world");
    }
  }
});

new Vue({
  render: h => h(App)
}).$mount("#app");

Once the Mixin is added, you can easily call the helloWorld() method in your component script using this.helloWorld() or directly as helloWorld() in the template.

Additionally, Vue.js provides Filters for applying common text formatting. More details can be found here. To use a Filter, include the following code in your main.js:

import Vue from "vue";
import App from "./App.vue";

Vue.filter("capitalize", function(value) {
  if (!value) return "";
  value = value.toString();
  return value.charAt(0).toUpperCase() + value.slice(1);
});

new Vue({
  render: h => h(App)
}).$mount("#app");

Now, you can apply the capitalize filter to text by using

{{ "some text" | capitalize }}

.

For a live example, check out this CodeSandbox demo.

Answer 6

If you want to enhance your Vue.js application, consider using Mixins. You can find more information here.

To implement a Mixin in your project, simply add the following code snippet to your main.js:

import Vue from "vue";
import App from "./App.vue";

Vue.mixin({
  methods: {
    helloWorld() {
      alert("Hello world");
    }
  }
});

new Vue({
  render: h => h(App)
}).$mount("#app");

Once the Mixin is added, you can easily call the helloWorld() method in your component script using this.helloWorld() or directly as helloWorld() in the template.

Additionally, Vue.js provides Filters for applying common text formatting. More details can be found here. To use a Filter, include the following code in your main.js:

import Vue from "vue";
import App from "./App.vue";

Vue.filter("capitalize", function(value) {
  if (!value) return "";
  value = value.toString();
  return value.charAt(0).toUpperCase() + value.slice(1);
});

new Vue({
  render: h => h(App)
}).$mount("#app");

Now, you can apply the capitalize filter to text by using

{{ "some text" | capitalize }}

.

For a live example, check out this CodeSandbox demo.

What is the best way to create a function library that works seamlessly across all of my Vue.js components?

Answer №1

Answer №2

Answer №3

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