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Formatting Phone Numbers in React: Custom Logic vs Pre-built Libraries

Phone numbers are an integral part of our daily lives, and the need for formatting them in a specific way cannot be overstated. Whether it is for contact forms, business cards, or simply saving contacts, it is essential to ensure that phone numbers are in the correct format.

In this article, we will explore two different approaches to formatting phone numbers in the React framework. The first is by creating custom logic, and the second is by using a pre-built library.

Let’s dive in!

Creating Custom Logic for Phone Number Formatting

When formatting phone numbers in React, there are different techniques for ensuring that they are in the desired format. One of the most common approaches is by creating custom logic to format the phone numbers.

Formatting Rules for Phone Numbers

To create a custom logic for formatting phone numbers, one must first understand the formatting rules that govern phone numbers. Phone numbers have various formats based on regions and countries.

For instance, a phone number in the US typically has ten digits, while in Uganda, it has thirteen digits. Also, phone numbers may contain dashes, spaces, or brackets.

Understanding these rules is crucial in creating a custom logic that formats phone numbers correctly.

Implementing Custom Logic for Phone Number Formatting

Once the formatting rules are understood, implementing the custom logic becomes more straightforward. Using code, developers can specify the conditions that determine how the phone number should be formatted.

For instance, a developer can write a function that takes an input value (phone number) and formats it based on the specific formatting rules. Custom logic for formatting phone numbers is useful for developers who have specific formatting requirements or cannot make use of pre-built libraries.

It allows for greater flexibility in formatting and can be tailored to a particular use case.

Using the react-phone-number-input Library for Phone Number Formatting

The react-phone-number-input library is a pre-built solution that developers can use for formatting phone numbers in React. The library is open-source and is available for download from the NPM registry.

The library provides various features that allow developers to input, validate, and format phone numbers. For instance, the component displays the country’s name and flag next to the input field, allowing users to select a country from a dropdown list.

Once a country is selected, the input field’s formatting automatically adjusts to meet the selected country’s formatting rules. One of the significant advantages of using the react-phone-number-input library is that it reduces development time, as developers do not have to implement phone number formatting rules from scratch.

It also provides a more consistent formatting experience across different projects.

Conclusion

In this article, we have explored two different approaches to formatting phone numbers in React. Custom logic and the react-phone-number-input library provide developers with flexibility and consistency in formatting phone numbers.

By understanding the formatting rules and implementing custom logic, developers can create a suitable formatting solution for specific use cases. Alternatively, using a pre-built library, such as the react-phone-number-input, can reduce development time and provide a more consistent user experience.

Using react-phone-number-input Library for Phone Number Formatting

React-phone-number-input is an excellent library for developers who want to speed up phone number formatting without writing custom logic from scratch. The library provides an input field and various formatting features to allow developers to input, validate, and format phone numbers.

Installing react-phone-number-input Library

The first step to utilizing react-phone-number-input is to install the library in the project. Developers can install react-phone-number-input through the NPM registry using the following command:

“`

npm install react-phone-number-input

“`

Utilizing the Component for Phone Number Formatting

Once the library is installed, developers can utilize the component to create an input field for formatting phone numbers. The component provides features that detect the country code and adjust the formatting as per the country’s rules.

To create a formatted phone number input field using the component, developers can incorporate the following code:

“`

import PhoneInput from ‘react-phone-number-input’;

function App() {

const [phone, setPhone] = useState();

return (

placeholder=”Enter phone number”

value={phone}

onChange={setPhone}

/>

);

}

“`

Comparison of Custom Logic vs. react-phone-number-input Library

Both custom logic and the react-phone-number-input library provide developers with methods for formatting phone numbers in React.

However, each approach has its advantages and disadvantages.

Advantages and Disadvantages of Custom Logic

One of the significant advantages of custom logic is that it allows developers to have complete control of the formatting process. Developers can tailor the formatting rules to suit specific use cases, such as formatting phone numbers for different regions.

Custom logic can also be more performant. Pre-built libraries can be heavy and require additional dependencies, which can affect performance.

Writing custom logic from scratch ensures that the code only includes necessary features, resulting in faster loading times. However, writing custom logic requires more development time, and it can be challenging to debug issues, such as formatting errors, especially for developers with minimal experience.

It also requires knowledge of formatting rules for different regions and conventions.

Advantages and Disadvantages of react-phone-number-input Library

The react-phone-number-input library is a pre-built solution that provides input validation and automatically adjusts formatting based on the selected country. This approach reduces development time, as developers do not have to spend time creating custom formatting rules.

The library is also more user-friendly for users who enter phone numbers. The component displays a country code and a flag next to the input field, making it easy for users to select their country.

However, the react-phone-number-input library may not work for particular use cases, such as custom formatting requirements or specific input validation rules. The library may also contain features that are not necessary for a particular use case, resulting in bloated code.

Conclusion

Whether developers choose to write custom logic or use the react-phone-number-input library, the primary goal is to ensure that phone numbers are in the correct format. Custom logic offers more control and can be more performant, while pre-built libraries such as react-phone-number-input provide convenience and reduce development time.

Ultimately, it is up to developers to decide which approach is best suited for their specific use case. In summary, formatting phone numbers in React is an important consideration for developers.

Custom logic and pre-built libraries, such as react-phone-number-input, are two approaches for formatting phone numbers. Custom logic provides more control and can be more performant, while pre-built libraries offer convenience and reduce development time.

Developers must consider their specific use case to determine which approach is best suited for their project. The key takeaway is that formatted phone numbers improve user experience and increase the accuracy of data collection.

Therefore, paying attention to this important detail will ultimately benefit developers and end-users alike.

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