Automatically convert user input to MM/DD/YYYY format in typescript as they type the date

Hello, I am currently working on a React Native app where users input their date using TextInput. As the user types, I would like to automatically format the date as MM/DD/YYYY. Here is the function I have created so far:

    const formatDate(value: string) => {
     if(!value) return '';
     if(value.lastIndexOf('/') !== -1) {
       value = value.substring(0, value.length-1);
     } else if(value.length === 2 || value.length === 5) 
      {
       value += '/';
     }
     return value;
}

The function works well when entering values but encounters issues when a user tries to delete characters from the date. The problem arises when attempting to delete a character. Any assistance or recommendations would be greatly appreciated.

Answer №1

If you want to simplify the process, I recommend trying out an "input masking" library for a smooth experience.

Another option is to consider using date pickers instead of standard text input fields, or dividing your text input into multiple sections that shift based on user actions (e.g. moving from day to month input once two digits are entered). This can enhance usability and streamline data entry.

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