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kouameYao/NumberToLetter.js

Created July 17, 2023 09:40
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Convert any given number into letter
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NumberToLetter.js
function Unite(nombre) {
var unite;
switch (nombre) {
case 0:
unite = 'zéro';
break;
case 1:
unite = 'un';
break;
case 2:
unite = 'deux';
break;
case 3:
unite = 'trois';
break;
case 4:
unite = 'quatre';
break;
case 5:
unite = 'cinq';
break;
case 6:
unite = 'six';
break;
case 7:
unite = 'sept';
break;
case 8:
unite = 'huit';
break;
case 9:
unite = 'neuf';
break;
}
return unite;
}
function Dizaine(nombre) {
switch (nombre) {
case 10:
dizaine = 'dix';
break;
case 11:
dizaine = 'onze';
break;
case 12:
dizaine = 'douze';
break;
case 13:
dizaine = 'treize';
break;
case 14:
dizaine = 'quatorze';
break;
case 15:
dizaine = 'quinze';
break;
case 16:
dizaine = 'seize';
break;
case 17:
dizaine = 'dix-sept';
break;
case 18:
dizaine = 'dix-huit';
break;
case 19:
dizaine = 'dix-neuf';
break;
case 20:
dizaine = 'vingt';
break;
case 30:
dizaine = 'trente';
break;
case 40:
dizaine = 'quarante';
break;
case 50:
dizaine = 'cinquante';
break;
case 60:
dizaine = 'soixante';
break;
case 70:
dizaine = 'soixante-dix';
break;
case 80:
dizaine = 'quatre-vingt';
break;
case 90:
dizaine = 'quatre-vingt-dix';
break;
}
return dizaine;
}
function NumberToLetter(nombre) {
var i, j, n, quotient, reste, nb;
var ch;
var numberToLetter = '';
if (nombre.toString().replace(/ /gi, '').length > 15) return 'dépassement de capacité';
if (isNaN(nombre.toString().replace(/ /gi, ''))) return 'Nombre non valide';
nb = parseFloat(nombre.toString().replace(/ /gi, ''));
if (Math.ceil(nb) != nb) return 'Nombre avec virgule non géré.';
n = nb.toString().length;
switch (n) {
case 1:
numberToLetter = Unite(nb);
break;
case 2:
if (nb > 19) {
quotient = Math.floor(nb / 10);
reste = nb % 10;
if (nb < 71 || (nb > 79 && nb < 91)) {
if (reste == 0) numberToLetter = Dizaine(quotient * 10);
if (reste == 1) numberToLetter = Dizaine(quotient * 10) + '-et-' + Unite(reste);
if (reste > 1) numberToLetter = Dizaine(quotient * 10) + '-' + Unite(reste);
} else numberToLetter = Dizaine((quotient - 1) * 10) + '-' + Dizaine(10 + reste);
} else numberToLetter = Dizaine(nb);
break;
case 3:
quotient = Math.floor(nb / 100);
reste = nb % 100;
if (quotient == 1 && reste == 0) numberToLetter = 'cent';
if (quotient == 1 && reste != 0) numberToLetter = 'cent' + ' ' + NumberToLetter(reste);
if (quotient > 1 && reste == 0) numberToLetter = Unite(quotient) + ' cents';
if (quotient > 1 && reste != 0)
numberToLetter = Unite(quotient) + ' cent ' + NumberToLetter(reste);
break;
case 4:
quotient = Math.floor(nb / 1000);
reste = nb - quotient * 1000;
if (quotient == 1 && reste == 0) numberToLetter = 'mille';
if (quotient == 1 && reste != 0) numberToLetter = 'mille' + ' ' + NumberToLetter(reste);
if (quotient > 1 && reste == 0) numberToLetter = NumberToLetter(quotient) + ' mille';
if (quotient > 1 && reste != 0)
numberToLetter = NumberToLetter(quotient) + ' mille ' + NumberToLetter(reste);
break;
case 5:
quotient = Math.floor(nb / 1000);
reste = nb - quotient * 1000;
if (quotient == 1 && reste == 0) numberToLetter = 'mille';
if (quotient == 1 && reste != 0) numberToLetter = 'mille' + ' ' + NumberToLetter(reste);
if (quotient > 1 && reste == 0) numberToLetter = NumberToLetter(quotient) + ' mille';
if (quotient > 1 && reste != 0)
numberToLetter = NumberToLetter(quotient) + ' mille ' + NumberToLetter(reste);
break;
case 6:
quotient = Math.floor(nb / 1000);
reste = nb - quotient * 1000;
if (quotient == 1 && reste == 0) numberToLetter = 'mille';
if (quotient == 1 && reste != 0) numberToLetter = 'mille' + ' ' + NumberToLetter(reste);
if (quotient > 1 && reste == 0) numberToLetter = NumberToLetter(quotient) + ' mille';
if (quotient > 1 && reste != 0)
numberToLetter = NumberToLetter(quotient) + ' mille ' + NumberToLetter(reste);
break;
case 7:
quotient = Math.floor(nb / 1000000);
reste = nb % 1000000;
if (quotient == 1 && reste == 0) numberToLetter = 'un million';
if (quotient == 1 && reste != 0) numberToLetter = 'un million' + ' ' + NumberToLetter(reste);
if (quotient > 1 && reste == 0) numberToLetter = NumberToLetter(quotient) + ' millions';
if (quotient > 1 && reste != 0)
numberToLetter = NumberToLetter(quotient) + ' millions ' + NumberToLetter(reste);
break;
case 8:
quotient = Math.floor(nb / 1000000);
reste = nb % 1000000;
if (quotient == 1 && reste == 0) numberToLetter = 'un million';
if (quotient == 1 && reste != 0) numberToLetter = 'un million' + ' ' + NumberToLetter(reste);
if (quotient > 1 && reste == 0) numberToLetter = NumberToLetter(quotient) + ' millions';
if (quotient > 1 && reste != 0)
numberToLetter = NumberToLetter(quotient) + ' millions ' + NumberToLetter(reste);
break;
case 9:
quotient = Math.floor(nb / 1000000);
reste = nb % 1000000;
if (quotient == 1 && reste == 0) numberToLetter = 'un million';
if (quotient == 1 && reste != 0) numberToLetter = 'un million' + ' ' + NumberToLetter(reste);
if (quotient > 1 && reste == 0) numberToLetter = NumberToLetter(quotient) + ' millions';
if (quotient > 1 && reste != 0)
numberToLetter = NumberToLetter(quotient) + ' millions ' + NumberToLetter(reste);
break;
case 10:
quotient = Math.floor(nb / 1000000000);
reste = nb - quotient * 1000000000;
if (quotient == 1 && reste == 0) numberToLetter = 'un milliard';
if (quotient == 1 && reste != 0) numberToLetter = 'un milliard' + ' ' + NumberToLetter(reste);
if (quotient > 1 && reste == 0) numberToLetter = NumberToLetter(quotient) + ' milliards';
if (quotient > 1 && reste != 0)
numberToLetter = NumberToLetter(quotient) + ' milliards ' + NumberToLetter(reste);
break;
case 11:
quotient = Math.floor(nb / 1000000000);
reste = nb - quotient * 1000000000;
if (quotient == 1 && reste == 0) numberToLetter = 'un milliard';
if (quotient == 1 && reste != 0) numberToLetter = 'un milliard' + ' ' + NumberToLetter(reste);
if (quotient > 1 && reste == 0) numberToLetter = NumberToLetter(quotient) + ' milliards';
if (quotient > 1 && reste != 0)
numberToLetter = NumberToLetter(quotient) + ' milliards ' + NumberToLetter(reste);
break;
case 12:
quotient = Math.floor(nb / 1000000000);
reste = nb - quotient * 1000000000;
if (quotient == 1 && reste == 0) numberToLetter = 'un milliard';
if (quotient == 1 && reste != 0) numberToLetter = 'un milliard' + ' ' + NumberToLetter(reste);
if (quotient > 1 && reste == 0) numberToLetter = NumberToLetter(quotient) + ' milliards';
if (quotient > 1 && reste != 0)
numberToLetter = NumberToLetter(quotient) + ' milliards ' + NumberToLetter(reste);
break;
case 13:
quotient = Math.floor(nb / 1000000000000);
reste = nb - quotient * 1000000000000;
if (quotient == 1 && reste == 0) numberToLetter = 'un billion';
if (quotient == 1 && reste != 0) numberToLetter = 'un billion' + ' ' + NumberToLetter(reste);
if (quotient > 1 && reste == 0) numberToLetter = NumberToLetter(quotient) + ' billions';
if (quotient > 1 && reste != 0)
numberToLetter = NumberToLetter(quotient) + ' billions ' + NumberToLetter(reste);
break;
case 14:
quotient = Math.floor(nb / 1000000000000);
reste = nb - quotient * 1000000000000;
if (quotient == 1 && reste == 0) numberToLetter = 'un billion';
if (quotient == 1 && reste != 0) numberToLetter = 'un billion' + ' ' + NumberToLetter(reste);
if (quotient > 1 && reste == 0) numberToLetter = NumberToLetter(quotient) + ' billions';
if (quotient > 1 && reste != 0)
numberToLetter = NumberToLetter(quotient) + ' billions ' + NumberToLetter(reste);
break;
case 15:
quotient = Math.floor(nb / 1000000000000);
reste = nb - quotient * 1000000000000;
if (quotient == 1 && reste == 0) numberToLetter = 'un billion';
if (quotient == 1 && reste != 0) numberToLetter = 'un billion' + ' ' + NumberToLetter(reste);
if (quotient > 1 && reste == 0) numberToLetter = NumberToLetter(quotient) + ' billions';
if (quotient > 1 && reste != 0)
numberToLetter = NumberToLetter(quotient) + ' billions ' + NumberToLetter(reste);
break;
}
if (
numberToLetter.substr(numberToLetter.length - 'quatre-vingt'.length, 'quatre-vingt'.length) ==
'quatre-vingt'
)
numberToLetter = numberToLetter + 's';
return numberToLetter;
}
console.log(NumberToLetter(71));
console.log(NumberToLetter(1));
console.log(NumberToLetter(100));
console.log(NumberToLetter(94));
console.log(NumberToLetter(0));
console.log(NumberToLetter(1234567));
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