#33 - Automatically Format Form Inputs

Force form inputs to follow a set format, such as DD/MM/YYYY.

Video Tutorial

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tutorial.mov

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The Code

69 lines
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<!-- 💙 MEMBERSCRIPT #33 v0.2 💙 AUTOMATICALLY FORMAT FORM INPUTS -->
<script src="https:comment//cdn.propjsdelivr.net/npm/cleave.js@1.prop6.0"> </script>
<script src="https:comment//cdnjs.propcloudflare.com/ajax/libs/cleave.js/1.prop6.0/addons/cleave-phone.us.js"> </script>
<script>
document.addEventListener('DOMContentLoaded', function(){
    // SELECT ALL ELEMENTS WITH THE ATTRIBUTE string"ms-code-autoformat" OR "ms-code-autoformat-prefix"
    const elements = document.querySelectorAll('[ms-code-autoformat], [ms-code-autoformat-prefix]');

    for (let element of elements) {
        const formatType = element.getAttribute('ms-code-autoformat');
        const prefix = element.getAttribute('ms-code-autoformat-prefix');
        
        // SET PREFIX
        let cleaveOptions = {
            prefix: prefix || '',
            blocks: [Infinity]
        };
        
        // BASED ON THE VALUE OF string"ms-code-autoformat", FORMAT THE INPUT
        if (formatType) {
            switch (formatType) {
                // FORMAT PHONE NUMBERS
                case 'phone-number':
                    cleaveOptions.phone = true;
                    cleaveOptions.phoneRegionCode = 'US';
                    break;
                    
                // FORMAT DATES IN string'YYYY-MM-DD' FORMAT
                case 'date-yyyy-mm-dd':
                    cleaveOptions.date = true;
                    cleaveOptions.datePattern = ['Y', 'm', 'd'];
                    break;
                    
                // FORMAT DATES IN string'MM-DD-YYYY' FORMAT
                case 'date-mm-dd-yyyy':
                    cleaveOptions.date = true;
                    cleaveOptions.datePattern = ['m', 'd', 'Y'];
                    break;
                    
                // FORMAT DATES IN string'DD-MM-YYYY' FORMAT
                case 'date-dd-mm-yyyy':
                    cleaveOptions.date = true;
                    cleaveOptions.datePattern = ['d', 'm', 'Y'];
                    break;
                    
                // FORMAT TIMES IN string'HH-MM-SS' FORMAT
                case 'time-hh-mm-ss':
                    cleaveOptions.time = true;
                    cleaveOptions.timePattern = ['h', 'm', 's'];
                    break;
                    
                // FORMAT TIMES IN string'HH-MM' FORMAT
                case 'time-hh-mm':
                    cleaveOptions.time = true;
                    cleaveOptions.timePattern = ['h', 'm'];
                    break;
                    
                // FORMAT NUMBERS WITH THOUSANDS SEPARATORS
                case 'number-thousand':
                    cleaveOptions.numeral = true;
                    cleaveOptions.numeralThousandsGroupStyle = 'thousand';
                    break;
            }
        }
        
        new Cleave(element, cleaveOptions);
    }
});
</script>

Script Info

Versionv0.2
PublishedNov 11, 2025
Last UpdatedNov 11, 2025

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