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Lightweight package with functions and hooks for masking data inputs and outputs for Node.JS projects

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mask-hooks v3

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Lightweight package with functions and hooks for masking data inputs and outputs for Node.JS projects.

Demonstration

Examples page

Installation

Run the command below in the terminal to install mask-hooks in your project

npm install mask-hooks

Or with Yarn

yarn add mask-hooks

Examples with React

import { useMask } from "mask-hooks";
import { useState } from "react";

export default function InputMask() {

    const mask = useMask({
        masks: '$ #,##',
        placeholder: '0',
        reverse: true,
        infinity: {
            add: '.',
            each: 3
        },
        maxentries: 8
    });

    const [ value, setValue ] = useState(mask(''));

    return (

        <input
            value={ value }
            onChange={ input => setValue(mask(input.currentTarget.value)) }
        />

    );

}
  • Custom Mask with Numerical Range - Sandbox
import { useMask } from 'mask-hooks';

export default function Time() {

    const time = useMask({
        masks: '[0-23]:[0-59]:[0-59]'
    });

    return (
        <p>Time: { time('71900') /* print 07:19:00 */ }</p>
    );

}
import { useMask, presets } from 'mask-hooks';

export default function MaskDocs() {

    const documentMask = useMask(presets.DOCUMENT_CPF_CNPJ);

    return (
        <>
            <p>{ documentMask('11122233345')    /* print 111.222.333-45 */     }</p>
            <p>{ documentMask('11222333000145') /* print 11.222.333/0001-45 */ }</p>
        </>
    );

}
import { useMask, getPresetMask } from 'mask-hooks';

export default function MaskProduct() {

    const productKeyMask = useMask(getPresetMask('PRODUCT_KEY', { placeholder: '_' }));

    return (
        <div>
            {
                productKeyMask('h3pbvfhb27rjtgh')
                /* print H3PBV-FHB27-RJTGH-_____-_____ */
            }
        </div>
    );

}
  • Mask verification completed - Sandbox
import { useCompleteMask, presets } from "mask-hooks";
import { useState } from "react";

export default function InputMask() {

    const maskComplete = useCompleteMask(presets.DATETIME_STAMP_LIMITED);
    const [ data, setData ] = useState(maskComplete(''));

    return (

        <input
            value={ data.result }
            onChange={ input => setData(maskComplete(input.currentTarget.value)) }
            style={ { color: data.completed ? "#000000" : "#ff0000" } }
            title={ `${ data.entries } entries: ${ data.cleaned }` }
        />

    );

}
  • Mask verification completed and tested - Sandbox
import { useCompleteMask, presets } from "mask-hooks";
import { useState } from "react";

export default function InputMask() {

    // When filling out the mask is completed a test function
    // is applied to check whether a valid date was entered,
    // the result is received by the 'passing' key

    const maskTest = (result) => !isNaN(Date.parse(result));

    const maskComplete = useCompleteMask(presets.DATE_STAMP, maskTest);
    const [ data, setData ] = useState(maskComplete(''));

    return (

        <input
            value={ data.result }
            onChange={ input => setData(maskComplete(input.currentTarget.value)) }
            style={ { color: data.passing ? "#00ff00" : "#ff0000" } }
        />

    );

}
import { applyMask, presets } from 'mask-hooks';

export default function maskColor(target) {
    return applyMask(target, presets.COLOR_HEX);
}

Resources

Resources exported by the mask-hooks package:

  • Function useMask: main resource to use package. Returns a function to use the preconfigured mask.
function useMask(settings: MaskProps): <T extends Stringable>(target: T) => string
  • Function useCompleteMask: Returns a function to use the preconfigured mask with additional information in the result.
function useCompleteMask(settings: MaskProps, onComplete ?: (result : string, cleaned: string) => boolean): <T extends Stringable>(target: T) => { result: string, completed: boolean; entries: number; cleaned: string; passing : boolean | null; }
  • Function applyMask: use a mask directly on the target
function applyMask<T extends Stringable>(target : T, settingsOrMasks : MaskProps | string | string[]) : string
  • Class Mask: application mask core
class Mask {

    static defaultPatterns: {
        '#': RegExp;
        '@': RegExp;
        '?': RegExp;
    };
    static reverser(target: string): string;
    static transform(target: string, type: Required<MaskProps>['transform']): string;
    static padding(target: string | number, length: number, char?: string, left?: boolean): string;

    constructor(props: MaskProps);

    get props(): Readonly<Required<MaskProps>>;
    get completed(): boolean;
    get cleaned(): string;
    get entries(): number;

    apply<T extends Stringable>(target: T): string;

}
  • Constant presets: preconfigured masks
const presets: { [key in PresetOption]: MaskProps; }
  • Function getPresetMask: get a preset, optionally being able to change its settings
function getPresetMask(preset: PresetOption, change: Partial<MaskProps> = {}): MaskProps

MaskProps

The useMask receives the settings parameter of type MaskProps. See available settings:

Prop Type Default Details
masks string
Array<string>
The masks that will be applied to the target. By default the characters ?, #, @ will be replaced by letters or numbers, numbers, letters, respectively. This character pattern can be changed. You can also use a Numerical Range to limit a numeric value to be entered using the pattern [<number>-<number>]. To escape a replacement character use \ before it.
placeholder string '' Autofill of the mask to be filled
reverse boolean false Mask fill in inverted mode
transform 'uppercase'
'lowercase'
'capitalize'
'capitalizeAll'
'none'
'none' Apply a transformation to the result string
infinity boolean
{each:number;add:string;}
false Allows data entry indefinitely by the last mask replacement character
maxentries number
null
null If specified a number will limit the amount of user entries
patterns {[key in string]: RegExp} {'#': /[0-9]/,'@': /[A-Za-z]/,'?': /[A-Za-z0-9]/} Characters to be substituted in the mask if approved by the regular expression

Presets

You can import pre-established mask configurations. See the options:

  • ONLY_NUMBERS
  • ONLY_LETTERS
  • ONLY_CHARS
  • DATE_STAMP
  • DATE_PTBR
  • DATETIME_STAMP
  • DATETIME_PTBR
  • DATE_STAMP_LIMITED
  • DATE_PTBR_LIMITED
  • DATETIME_STAMP_LIMITED
  • DATETIME_PTBR_LIMITED
  • PHONE_USA
  • PHONE_BR
  • CURRENCY_POINT
  • CURRENCY_COMMA
  • CURRENCY_DOLLAR
  • CURRENCY_PTBR
  • CURRENCY_DOLLAR_LIMITED
  • CURRENCY_PTBR_LIMITED
  • DOCUMENT_CPF
  • DOCUMENT_CNPJ
  • DOCUMENT_CPF_CNPJ
  • ZIPCODE_USA
  • ZIPCODE_BR
  • PRODUCT_KEY
  • COLOR_HEX
  • CAPITALIZE_ALL

Migrating v2 to v3

The third version of the mask-hooks package now has the numerical range feature.

Author

License

This project is under the MIT license - see file LICENSE for details.

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Lightweight package with functions and hooks for masking data inputs and outputs for Node.JS projects

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