Convert digits into words with JavaScript

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I am making a code which converts the given amount into words, heres is what I have got after googling. But I think its a little lengthy code to achieve a simple task. Two R

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独厮守ぢ

2020-11-22 15:53

I modified @McShaman's code, converted it to CoffeeScript, and added docs via JSNice. Here's the result, for those interested (English):

###
    Convert an integer to an English string equivalent
    @param {Integer} number the integer to be converted
    @return {String} the English number equivalent
###
inWords = (number) ->
    ###
        @property {Array}
    ###
    englishIntegers = [
        ""
        "one "
        "two "
        "three "
        "four "
        "five "
        "six "
        "seven "
        "eight "
        "nine "
        "ten "
        "eleven "
        "twelve "
        "thirteen "
        "fourteen "
        "fifteen "
        "sixteen "
        "seventeen "
        "eighteen "
        "nineteen "
    ]

    ###
        @property {Array}
    ###
    englishIntegerTens = [
        ""
        ""
        "twenty"
        "thirty"
        "forty"
        "fifty"
        "sixty"
        "seventy"
        "eighty"
        "ninety"
    ]

    ###
        @property {Array}
    ###
    englishIntegerThousands = [
        "thousand"
        "million"
        ""
    ]
    number = number.toString()
    return "" if number.length > 9

    ###
        @property {string}
    ###
    number = ("000000000" + number).substr(-9)

    ###
      @property {(Array.<string>|null)}
      ###
    number = number.match(/.{3}/g)

    ###
        @property {string}
    ###
    convertedWords = ""

    ###
        @property {number}
    ###
    i = 0
    while i < englishIntegerThousands.length

        ###
            @property {string}
        ###
        currentNumber = number[i]

        ###
            @property {string}
        ###
        tempResult = ""
        tempResult += (if convertedWords isnt "" then " " + englishIntegerThousands[i] + " " else "")
        tempResult += (if currentNumber[0] isnt 0 then englishIntegers[Number(currentNumber[0])] + "hundred " else "")

        ###
            @property {string}
        ###
        currentNumber = currentNumber.substr(1)
        tempResult += (if currentNumber isnt 0 then ((if tempResult isnt "" then "and " else "")) + (englishIntegers[Number(currentNumber)] or englishIntegerTens[currentNumber[0]] + " " + englishIntegers[currentNumber[1]]) else "")
        convertedWords += tempResult
        i++
    convertedWords

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再見小時候

2020-11-22 15:53

Convert digits to word in French language using JavaScript and html - original French words

    <html>
        <head>
            <title>Number to word</title>

            <script>
                function toWords() {
                    var s = document.getElementById('value').value;
                    var th = ['','mille','million', 'milliard','billion'];
                    var dg = ['zéro','un','deux','trois','quatre', 'cinq','six','sept','huit','neuf'];
                    var tn = 

['dix','onze','douze','treize', 'quatorze','quinze','seize', 'dix-sept','dix-huit','dix-neuf'];
                var tw = ['vingt','trente','quarante','cinquante', 'soixante','soixante-dix','quatre-vingt','quatre-vingt-dix'];
                s = s.toString();
                s = s.replace(/[\, ]/g,'');
                if (s != parseFloat(s)) return 'not a number';
                var x = s.indexOf('.');
                if (x == -1)
                    x = s.length;
                if (x > 15)
                    return 'too big';
                var n = s.split(''); 
                var str = '';
                var sk = 0;
                for (var i=0;   i < x;  i++) {
                    if ((x-i)%3==2) { 
                        if (n[i] == '1') {

                            str += tn[Number(n[i+1])] + ' ';
                            i++;
                            sk=1;
                        } else if (n[i]!=0) { 
                            if(s!=21 && s!=31 && s!=41 && s!=51 && s!=61 && s!=71 && s!=72 && s!=73 && s!=74 && s!=75 && s!=76 && s!=100 && s!=91 && s!=92 && s!=93 && s!=94 && s!=95 && s!=96){
                            if(s==20 || s==30 || s==40 || s==50 || s==60 || s==70 || s==80 || s==90){
                            str += tw[n[i]-2] + ' ';} // for not to display hyphens for 20,30...90 
                            else{
                            str += tw[n[i]-2] + '-';}
                            sk=1;
                            }
                        }
                    } else if (n[i]!=0) {
                        if(s!=21 && s!=31 && s!=41 && s!=51 && s!=61 && s!=71 && s!=72 && s!=73 && s!=74 && s!=75 && s!=76 && s!=100 && s!=91 && s!=92 && s!=93 && s!=94 && s!=95 && s!=96){

                        str += dg[n[i]] +' ';
                        if ((x-i)%3==0) str += 'hundert ';  // for start from 101 - 

                        sk=1;
                        }
                    }
                    if ((x-i)%3==1) {
                        if(s!=21 && s!=31 && s!=41 && s!=51 && s!=61 && s!=71 && s!=72 && s!=73 && s!=74 && s!=75 && s!=76 && s!=100 && s!=91 && s!=92 && s!=93 && s!=94 && s!=95 && s!=96){
                        if (sk)
                            str += th[(x-i-1)/3] + ' ';
                        sk=0;
                        }
                    }
                }

                if (x != s.length) {
                    var y = s.length;
                    //str += 'point ';
                    //for (var i=x+1; i<y; i++)
                    //  str += dg[n[i]] +' ';
                    str += 'virgule ';
                     var counter=0;
                     for (var i=x+1; i<y; i++){
                        if ((y-i)%3==2) { 
                                            if (n[i] == '1') {
                                                            str += tn[Number(n[i+1])] + ' ';
                                                            i++;
                                                            counter=1;
                                            } else if (n[i]!=0) {
                                                            str += tw[n[i]-2] + '-';
                                                            counter=1;
                                            }
                                        }else if (n[i]!=0) { // 0235
                                            str += dg[n[i]] +' ';
                                        }
                     }

                }

                if (s!=21 && s!=31 && s!=41 && s!=51 && s!=61 && s!=71 && s!=72 && s!=73 && s!=74 && s!=75 && s!=76 && s!=100 && s!=91 && s!=92 && s!=93 && s!=94 && s!=95 && s!=96){
                document.getElementById("demo").innerHTML = str.replace(/\s+/g,' ')

                }
                else if (s==21){
                str = 'vingt-et-un'
                document.getElementById("demo").innerHTML = str;
                }//alert(str.replace(/\s+/g,' '));
                else if (s==31){
                str = 'trente-et-un'
                document.getElementById("demo").innerHTML = str;}
                else if (s==41){
                str = 'quarante-et-un'
                document.getElementById("demo").innerHTML = str;}
                else if (s==51){
                str = 'cinquante-et-un'
                document.getElementById("demo").innerHTML = str;}
                else if (s==61){
                str = 'soixante-et-un'
                document.getElementById("demo").innerHTML = str;}
                else if (s==71){
                str = 'soixante-et-onze'
                document.getElementById("demo").innerHTML = str;}
                else if (s==72){
                str = 'soixante-douze'
                document.getElementById("demo").innerHTML = str;}
                else if (s==73){
                str = 'soixante-treize'
                document.getElementById("demo").innerHTML = str;}
                else if (s==74){
                str = 'soixante-quatorze'
                document.getElementById("demo").innerHTML = str;}
                else if (s==75){
                str = 'soixante-quinze'
                document.getElementById("demo").innerHTML = str;}
                else if (s==76){
                str = 'soixante-seize'
                document.getElementById("demo").innerHTML = str;}
                else if (s==100){
                str = 'cent'
                document.getElementById("demo").innerHTML = str;}
                else if (s==91){
                str = 'quatre-vingt-onze'
                document.getElementById("demo").innerHTML = str;}
                else if (s==92){
                str = 'quatre-vingt-douze'
                document.getElementById("demo").innerHTML = str;}
                else if (s==93){
                str = 'quatre-vingt-treize'
                document.getElementById("demo").innerHTML = str;}
                else if (s==94){
                str = 'quatre-vingt-quatorze'
                document.getElementById("demo").innerHTML = str;}   
                else if (s==95){
                str = 'quatre-vingt-quinze'
                document.getElementById("demo").innerHTML = str;}   
                else if (s==96){
                str = 'quatre-vingt-seize'
                document.getElementById("demo").innerHTML = str;}               
            }
        </script>
    </head>
    <body>
        <p>Enter only numbers (max 15 digits) : </p>
        <input type="text" name="value" id='value' /><br>
        <input type="button" value="submit" onclick="toWords()" />
        <p id="demo"></p>
        <p id="demo1"></p>
    </body>
</html>

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盖世英雄少女心

2020-11-22 15:54

Another conversion that uses remainders and supports different languages:

function numberToWords(number) {
  var result = [];

  var fraction = number.toFixed(2).split('.');
  var integer_part = parseInt(fraction[0]);
  // var fractional_part = parseInt(fraction[1]); -- not handled here

  var previousNumber = null;
  for (var i = 0; i < fraction[0].length; i++) {
    var reminder = Math.floor(integer_part % 10);
    integer_part /= 10;
    var name = getNumberName(reminder, i, fraction[0].length, previousNumber);
    previousNumber = reminder;
    if (name)
      result.push(name);
  }

  result.reverse();
  return result.join(' ');
}

The getNumberName function is language-dependent and handles numbers up to 9999 (but it is easy to extend it to handle larger numbers):

function getNumberName(number, power, places, previousNumber) {
  var result = "";
  if (power == 1) {
    result = handleTeensAndTys(number, previousNumber);
  } else if (power == 0 && places != 1 || number == 0) {
    // skip number that was handled in teens and zero
  } else {
    result = locale.numberNames[number.toString()] + locale.powerNames[power.toString()];
  }

  return result;
}

handleTeensAndTys handles multiples of ten:

function handleTeensAndTys(number, previousNumber) {
  var result = "";
  if (number == 1) { // teens
    if (previousNumber in locale.specialTeenNames) {
      result = locale.specialTeenNames[previousNumber];    
    } else if (previousNumber in locale.specialTyNames) {
      result = locale.specialTyNames[previousNumber] + locale.teenSuffix;
    } else {
      result = locale.numberNames[previousNumber] + locale.teenSuffix;    
    }
  } else if (number == 0) { // previousNumber was not handled in teens
    result = locale.numberNames[previousNumber.toString()];
  } else { // other tys
    if (number in locale.specialTyNames) {
      result = locale.specialTyNames[number];
    } else {
      result = locale.numberNames[number];
    }
    result += locale.powerNames[1];
    if (previousNumber != 0) {
      result += " " + locale.numberNames[previousNumber.toString()];
    }
  }
  return result;
}

Finally, locale examples:

var locale = { // English
  numberNames: {1: "one", 2: "two", 3: "three", 4: "four", 5: "five", 6: "six", 7: "seven", 8: "eight", 9: "nine" },
  powerNames: {0: "", 1: "ty", 2: " hundred", 3: " thousand" },
  specialTeenNames: {0: "ten", 1: "eleven", 2: "twelve" },
  specialTyNames: {2: "twen", 3: "thir", 5: "fif" },
  teenSuffix: "teen"
};

var locale = { // Estonian
  numberNames: {1: "üks", 2: "kaks", 3: "kolm", 4: "neli", 5: "viis", 6: "kuus", 7: "seitse", 8: "kaheksa", 9: "üheksa"},
  powerNames: {0: "", 1: "kümmend", 2: "sada", 3: " tuhat" },
  specialTeenNames: {0: "kümme"},
  specialTyNames: {},
  teenSuffix: "teist"
};

Here's a JSFiddle with tests: https://jsfiddle.net/rcrxna7v/15/

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迷失自我

2020-11-22 15:54

 var units = ["", "one", "two", "three", "four", "five", "six", "seven", "eight", "nine"];
var tens = ["", "", "twenty", "thirty", "forty", "fifty", "sixty", "seventy", "eighty", "ninety"];



function convert7digitIntoWords(num) {
    var remainder = num % 1000000
    var hun = num - remainder;
    var div = Math.floor(num / 100000);
    if (remainder !== 0)
        return (convert2digitIntoWords(div) + " lakhs " + convert5digitIntoWords(remainder % 100000))
    else
        return (convert2digitIntoWords(div) + " lakhs ")
}

function convert6digitIntoWords(num) {
    var remainder = num % 100000
    var hun = num - remainder;
    var div = Math.floor(num / 100000);
    if (remainder !== 0)
        return (units[div] + " lakh " + convert5digitIntoWords(remainder))
    else
        return (units[div] + " lakh ")
}

function convert5digitIntoWords(num) {
    var remainder = num % 10000
    var hun = num - remainder;
    var div = Math.floor(num / 1000);
    if (remainder !== 0)
        return (convert2digitIntoWords(div) + " thousand " + convert3digitIntoWords(remainder % 1000))
    else
        return (convert2digitIntoWords(div) + " thousand")
}

function convert4digitIntoWords(num) {
    var remainder = num % 1000
    var hun = num - remainder;
    var div = Math.floor(num / 1000);
    if (remainder !== 0)
        return (units[div] + " thousand " + convert3digitIntoWords(remainder))
    else
        return (units[div] + " thousand")
}


function convert3digitIntoWords(num) {
    var remainder = num % 100
    var hun = num - remainder;
    var div = Math.floor(num / 100);
    if (remainder !== 0)
        return (units[div] + " hundred " + convert2digitIntoWords(remainder))
    else
        return (units[div] + " hundred ")
}

function convert2digitIntoWords(num) {
    var remainder = num % 10;
    var div = Math.floor(num / 10);
    return (tens[div] + " " + convertNumIntoWords(remainder));
}

function convertNumIntoWords(num) {

    switch (("" + num).length) {
        case 1:
            return units[num];
        case 2:
            return convert2digitIntoWords(num);
        case 3:
            return convert3digitIntoWords(num)
        case 4:
            return convert4digitIntoWords(num)
        case 5:
            return convert5digitIntoWords(num)
        case 6:
            return convert6digitIntoWords(num)
        case 7:
            return convert7digitIntoWords(num)
        default:
            return "cannot be converted"
    }
}

console.log(convertNumIntoWords(3445125));

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半阙折子戏

2020-11-22 15:55

I've just written paisa.js to do this, and it handles lakhs and crores correctly as well, can check it out. The core looks a bit like this:

const regulars = [
  {
    1: 'one', 2: 'two', 3: 'three', 4: 'four', 5: 'five', 6: 'six', 7: 'seven', 8: 'eight', 9: 'nine'
  },
  {
    2: 'twenty', 3: 'thirty', 4: 'forty', 5: 'fifty', 6: 'sixty', 7: 'seventy', 8: 'eighty', 9: 'ninety'
  }
]

const exceptions = {
  10: 'ten',
  11: 'eleven',
  12: 'twelve',
  13: 'thirteen',
  14: 'fourteen',
  15: 'fifteen',
  16: 'sixteen',
  17: 'seventeen',
  18: 'eighteen',
  19: 'nineteen'
}

const partInWords = (part) => {
  if (parseInt(part) === 0) return
  const digits = part.split('')
  const words = []
  if (digits.length === 3) {
    words.push([regulars[0][digits.shift()], 'hundred'].join(' '))
  }
  if (exceptions[digits.join('')]) {
    words.push(exceptions[digits.join('')])
  } else {
    words.push(digits.reverse().reduce((memo, el, i) => {
      memo.unshift(regulars[i][el])
      return memo
    }, []).filter(w => w).join(' '))
  }
  return words.filter(w => w.trim().length).join(' and ')
}

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名媛妹妹

2020-11-22 15:56

For those who are looking for imperial/english naming conventions.

Based on @Salman's answer

var a = ['','one ','two ','three ','four ', 'five ','six ','seven ','eight ','nine ','ten ','eleven ','twelve ','thirteen ','fourteen ','fifteen ','sixteen ','seventeen ','eighteen ','nineteen '];
var b = ['', '', 'twenty','thirty','forty','fifty', 'sixty','seventy','eighty','ninety'];

function inWords (num) {
    if ((num = num.toString()).length > 12) return 'overflow';
    n = ('00000000000' + num).substr(-12).match(/^(\d{3})(\d{3})(\d{3})(\d{1})(\d{2})$/);
    if (!n) return; var str = '';
    str += (n[1] != 0) ? (Number(n[1]) > 99 ? this.a[Number(n[1][0])] + 'hundred ' : '') + (a[Number(n[1])] || b[n[1][1]] + ' ' + a[n[1][2]]) + 'billion ' : '';
    str += (n[2] != 0) ? (Number(n[2]) > 99 ? this.a[Number(n[2][0])] + 'hundred ' : '') + (a[Number(n[2])] || b[n[2][1]] + ' ' + a[n[2][2]]) + 'million ' : '';
    str += (n[3] != 0) ? (Number(n[3]) > 99 ? this.a[Number(n[3][0])] + 'hundred ' : '') + (a[Number(n[3])] || b[n[3][1]] + ' ' + a[n[3][2]]) + 'thousand ' : '';
    str += (n[4] != 0) ? (a[Number(n[4])] || b[n[4][0]] + ' ' + a[n[4][1]]) + 'hundred ' : '';
     str += (Number(n[5]) !== 0) ? ((str !== '') ? 'and ' : '') +
                (this.a[Number(n[5])] || this.b[n[5][0]] + ' ' +
                    this.a[n[5][1]]) + '' : '';
    return str;
}

document.getElementById('number').onkeyup = function () {
    document.getElementById('words').innerHTML = inWords(document.getElementById('number').value);
};

<span id="words"></span>
<input id="number" type="text" />

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