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javascript validate credit card expiration date

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Shadow answered on May 28, 2022 Popularity 3/10 Helpfulness 7/10

answer javascript validate credit card expiration date

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javascript validate credit card expiration date

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    function luhnAlgorithm(value) {
        let v       = value.replace(/\s+/g, '').replace(/[^0-9]/gi, '')
        let matches = v.match(/\d{4,16}/g);
        let match   = matches && matches[0] || ''
        let parts   = []
        for (let i = 0, len = match.length; i < len; i += 1) {
            parts.push(match.substring(i, i + 1))
        }
        let sum = 0;
        for (let i = 0; i < parts.length; i++) {
            let intVal = parseInt(parts[i]);
            if (i % 2 === 0) {
                intVal *= 2;
                if (intVal > 9) {
                    intVal = 1 + (intVal % 10);
                }
            }
            sum += intVal;
        }
        return (sum % 10) === 0;
    }

Popularity 3/10 Helpfulness 7/10 Language javascript

Source: Grepper

Tags: credit-card date javascript

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Contributed on Oct 27 2023

Shadow

0 Answers Avg Quality 2/10

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javascript validate credit card expiration date

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 function cardExpireFormat(value) {
        let v       = value.replace(/\s+/g, '').replace(/[^0-9]/gi, '')
        let matches = v.match(/\d{2,4}/g);
        let match   = matches && matches[0] || ''
        let parts   = []
        for (let i = 0, len = match.length; i < len; i += 2) {
            parts.push(match.substring(i, i + 2))
        }
        return parts.length ? parts.join('/') : value;
    }

Popularity 3/10 Helpfulness 7/10 Language javascript

Source: Grepper

Tags: javascript credit-card date

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Contributed on Oct 27 2023

Shadow

0 Answers Avg Quality 2/10

javascript validate credit card expiration date

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    function validateExpiryDate(s) {
        // Check 2-2 digits
        if (!/\d\d\/\d\d/.test(s)) {
            return "@lang('telegram.card_expire_error_1') " + s;
        }

        // Check month is 1 to 12 inclusive
        let b = s.split('/');
        if (b[0] < 1 || b[0] > 12) {
            return "@lang('telegram.card_expire_error_2') " + b[0];
        }

        // Check is this month or later
        let d = new Date()
        let c = d.getFullYear() / 100 | 0 + '';
        if (new Date(c + b[1], b[0], 1) < d) {
            return "@lang('telegram.card_expire_error_3') " + s;
        }
        return true;
    }

Popularity 3/10 Helpfulness 7/10 Language javascript

Source: Grepper

Tags: javascript credit-card date

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Contributed on Oct 27 2023

Shadow

0 Answers Avg Quality 2/10

javascript credit card validation

Comment

// You will need various ragex for difference card validation
// eg
function cardnumber(inputtxt)
{
  var cardno = /^(?:4[0-9]{12}(?:[0-9]{3})?)$/;
  if(inputtxt.value.match(cardno))
        {
      return true;
        }
      else
        {
        alert("Not a valid Visa credit card number!");
        return false;
        }
}
// Or you can use card-validator npm package
// npm i card-validator

var valid = require("card-validator");

var numberValidation = valid.number("4111");

if (!numberValidation.isPotentiallyValid) {
  renderInvalidCardNumber();
}

if (numberValidation.card) {
  console.log(numberValidation.card.type); // 'visa'
}

Popularity 9/10 Helpfulness 5/10 Language javascript

Source: Grepper

Tags: javascript credit-card validation jav

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Contributed on May 28 2022

Himanshu Jangid

0 Answers Avg Quality 2/10

javascript validate credit card expiration date

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