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danielyaa5/number_to_word.js

Created February 11, 2020 17:01
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  1. danielyaa5 created this gist Feb 11, 2020.
    52 changes: 52 additions & 0 deletions number_to_word.js
    View file
    Original file line number Diff line number Diff line change
    @@ -0,0 +1,52 @@
    // (224) 577 5898

    const getTens = tens => ['Ten', 'Twenty', 'Thirty', 'Forty', 'Fifty', 'Sixty', 'Seventy', 'Eighty', 'Ninetey'][tens - 1]

    const below20 = integer => ['One', 'Two', 'Three', 'Four', 'Five', 'Six', 'Seven', 'Eight', 'Nine', 'Ten', 'Eleven', 'Twelve', 'Thirteen', 'Fourteen', 'Fifteen', 'Sixteen', 'Seventeen', 'Eightteen', 'Nineteen'][integer - 1]

    const addWords = (result, words) => result.length === 0 ? words : `${result} ${words}`;

    const solution = (integer) => {
    if (integer === 0) return 'Zero';

    if (integer < 20) return below20(integer);

    const thousands = Math.floor(integer / 1000);
    const hundreds = Math.floor((integer - (thousands * 1000)) / 100);
    const tens = Math.floor((integer - (thousands * 1000) - (hundreds * 100)) / 10);
    const tens2 = integer - (thousands * 1000) - (hundreds * 100);
    const ones = integer - (thousands * 1000) - (hundreds * 100) - (tens * 10);

    let result = '';
    if (thousands) {
    result = addWords(result, `${solution(thousands)} Thousand`);
    }

    if (hundreds) {
    result = addWords(result, `${below20(hundreds)} Hundred`);
    }

    if (tens2 < 20) {
    result = addWords(result, below20(tens2));
    return result;
    }

    if (tens) {
    result = addWords(result, getTens(tens));
    }

    if (ones) {
    result = addWords(result, below20(ones));
    }

    return result;
    }


    console.log(solution(3542), '3542')
    console.log(solution(11), '11')
    console.log(solution(123915), '123915')
    console.log(solution(99999), '99999')