geekyorion · October 28, 2022 15:02 · Oct 28, 2022
diff --git a/numberToWord_en_IN.js b/numberToWord_en_IN.js
@@ -0,0 +1,98 @@
+const numberTexts = {
+    0: 'zero',
+    1: 'one',
+    2: 'two',
+    3: 'three',
+    4: 'four',
+    5: 'five',
+    6: 'six',
+    7: 'seven',
+    8: 'eight',
+    9: 'nine',
+    10: 'ten',
+    11: 'eleven',
+    12: 'twelve',
+    13: 'thirteen',
+    14: 'fourteen',
+    15: 'fifteen',
+    16: 'sixteen',
+    17: 'seventeen',
+    18: 'eighteen',
+    19: 'nineteen',
+    20: 'twenty',
+    30: 'thirty',
+    40: 'forty',
+    50: 'fifty',
+    60: 'sixty',
+    70: 'seventy',
+    80: 'eighty',
+    90: 'ninety',
+    100: 'hundred',
+    1000: 'thousand',
+    100000: 'lakhs',
+    10000000: 'Crores'
+};
+
+const checkLimit = number => {
+    const upperLimit = 999999999;
+    if (number > upperLimit) {
+        throw new Error(`number should be less than ${upperLimit}`);
+    }
+};
+
+const getLastNDigits = (num, power) => {
+    const divider = 10 ** power;
+    return [num % divider, ~~(num / divider)];
+};
+
+const getTwoDigitWord = digits => {
+    let word = '';
+    if (digits in numberTexts) {
+        word = numberTexts[digits];
+    } else {
+        const [remaining, tensPlace] = getLastNDigits(digits, 1);
+        word = `${numberTexts[tensPlace * 10]} ${numberTexts[remaining]}`;
+    }
+    return word;
+};
+
+const getWordPlace = place => {
+    if (place) {
+        return numberTexts[10 ** place];
+    }
+    return '';
+}
+
+const getDigitWithPlace = (digit, place) => {
+    const wordPlace = getWordPlace(place);
+    if (digit < 10) {
+        return `${numberTexts[digit]} ${wordPlace}`;
+    }
+    return `${getTwoDigitWord(digit)} ${wordPlace}`;
+}
+
+const getText = number => {
+    checkLimit(number);
+
+    let _number = number;
+    let currentDigits = _number;
+
+    if (_number in numberTexts) {
+        return numberTexts[_number];
+    } else {
+        const checkFor = [2, 1, 2, 2, 2];
+        const places = [0, 2, 3, 5, 7];
+        let word = '';
+
+        for (let i in checkFor) {
+            [currentDigits, _number] = getLastNDigits(_number, checkFor[i]);
+            if (currentDigits) {
+                word = `${getDigitWithPlace(currentDigits, places[i])} ${word}`;
+            }
+            if (!_number) return word.trim();
+        }
+    }
+};
+
+const text = getText(1111);
+console.log(text); // one thousand one hundred eleven