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n2words

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Convert numbers to words in 70+ languages with zero dependencies. Supports BigInt, decimals, and browser/Node.js environments.

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/*! n2words/en-US v5.1.2 | MIT License | github.com/forzagreen/n2words */ function e(e){let[n,t]=e.toLowerCase().split("e");const r=parseInt(t,10);let i="";"-"===n[0]&&(i="-",n=n.slice(1));const o=n.indexOf("."),s=-1===o?n:n.slice(0,o)+n.slice(o+1),u=(-1===o?n.length:o)+r;return u>=s.length?i+s+"0".repeat(u-s.length):u<=0?i+"0."+"0".repeat(-u)+s:i+s.slice(0,u)+"."+s.slice(u)}function n(n){const r=n.toString();return t(r)?e(r):r}function t(e){return e.includes("e")||e.includes("E")}function r(e){const n="-"===e[0];n&&(e=e.slice(1));const t=e.indexOf(".");if(-1===t)return{isNegative:n,integerPart:BigInt(e)};const r=e.slice(0,t)||"0",i=e.slice(t+1);return{isNegative:n,integerPart:BigInt(r),decimalPart:i}}function i(n){let r=n.trim();if(0===r.length||Number.isNaN(Number(r)))throw new RangeError(`Invalid currency format: "${n}"`);t(r)&&(r=e(r));const i="-"===r[0];i&&(r=r.slice(1));const o=r.indexOf(".");if(-1===o)return{isNegative:i,dollars:BigInt(r),cents:0n};const s=r.slice(0,o)||"0",u=(r.slice(o+1)+"00").slice(0,2);return{isNegative:i,dollars:BigInt(s),cents:BigInt(u)}}function o(e,n,t){if(null===n)return;if(e<n&&!(t&&BigInt(t)>=n))return;const r=n.toString().length-1,i=n===10n**BigInt(r)?`10^${r} - 1`:""+(n-1n);throw new RangeError(`Number too large to convert: the largest supported value is ${i}`)}function s(e){return 10n**BigInt(3*(e+1))}function u(e,n,t){const r={...n};if(void 0===e)return r;if(!function(e){if(null===e||"object"!=typeof e)return!1;const n=Object.getPrototypeOf(e);return null===n||n===Object.prototype}(e))throw new TypeError("Invalid options: expected plain object or undefined, got "+typeof e);const i=Object.keys(n);for(const[t,o]of Object.entries(e)){if(!Object.hasOwn(n,t))throw new TypeError(`Unknown option "${t}" — expected one of: ${i.join(", ")}`);if(void 0!==o){if(typeof o!=typeof r[t])throw new TypeError(`Option "${t}" must be a ${typeof r[t]}, got ${typeof o}`);r[t]=o}}return r}const l=["","one","two","three","four","five","six","seven","eight","nine"],c=["ten","eleven","twelve","thirteen","fourteen","fifteen","sixteen","seventeen","eighteen","nineteen"],f=["","","twenty","thirty","forty","fifty","sixty","seventy","eighty","ninety"],a=["thousand","million","billion","trillion","quadrillion","quintillion","sextillion","septillion","octillion","nonillion","decillion","undecillion","duodecillion","tredecillion","quattuordecillion","quindecillion","sexdecillion","septendecillion","octodecillion","novemdecillion","vigintillion"],d=s(a.length),g=s(a.length),h=s(a.length),w="hundred",b="zero",p="minus",m=["","first","second","third","fourth","fifth","sixth","seventh","eighth","ninth"],v=["tenth","eleventh","twelfth","thirteenth","fourteenth","fifteenth","sixteenth","seventeenth","eighteenth","nineteenth"],y=["","","twentieth","thirtieth","fortieth","fiftieth","sixtieth","seventieth","eightieth","ninetieth"],N={word:"",hasHundred:!1};function I(e,n){if(0===e)return N.word="",N.hasHundred=!1,N;const t=e%10,r=Math.trunc(e/10)%10,i=Math.trunc(e/100);let o="";return 1===r?o=c[t]:r>=2?o=t>0?f[r]+"-"+l[t]:f[r]:t>0&&(o=l[t]),i>0?(N.word=o?l[i]+" "+w+(n?" and ":" ")+o:l[i]+" "+w,N.hasHundred=!0):(N.word=o,N.hasHundred=!1),N}function E(e,n,t){if(0n===e)return b;if(e<1000n)return I(Number(e),t).word;if(n&&e>=1100n&&e<=9999n){const n=Number(e),r=Math.trunc(n/100),i=n%100,{word:o}=I(r,t);let s=o+" "+w;if(i>0){const{word:e}=I(i,t);t&&(s+=" and"),s+=" "+e}return s}if(e<1000000n){const n=Number(e/1000n),r=Number(e%1000n),{word:i}=I(n,t);let o=i+" "+a[0];if(r>0){const{word:e,hasHundred:n}=I(r,t);t&&!n&&(o+=" and"),o+=" "+e}return o}return function(e,n){const t=[];let r=e;for(;r>0n;)t.push(Number(r%1000n)),r/=1000n;let i=-1;if(n)for(let e=0;e<t.length;e++)if(0!==t[e]){i=e;break}let o="",s=!1;for(let e=t.length-1;e>=0;e--){const r=t[e];if(0===r)continue;const{word:u,hasHundred:l}=I(r,n);n&&o&&e===i&&s&&!l&&(o+=" and"),o&&(o+=" "),o+=u,e>0?(o+=" "+a[e-1],s=!0):s=!1}return o}(e,t)}const O={hundredPairing:!1,and:!1};function x(i,s){const{isNegative:l,integerPart:c,decimalPart:f}=function(i){const o=typeof i;if("bigint"==typeof i)return i<0n?{isNegative:!0,integerPart:-i}:{isNegative:!1,integerPart:i};if("number"==typeof i){if(!Number.isFinite(i))throw new RangeError("Number must be finite (NaN and Infinity are not supported)");return Number.isSafeInteger(i)?i<0?{isNegative:!0,integerPart:BigInt(-i)}:{isNegative:!1,integerPart:BigInt(i)}:r(n(i))}if("string"==typeof i)return r(function(n){const r=n.trim();if(0===r.length||Number.isNaN(Number(r)))throw new RangeError(`Invalid number format: "${n}"`);return t(r)?e(r):r}(i));throw new TypeError(`Invalid value type: expected number, string, or bigint, received ${o}`)}(i);o(c,d,f);const{hundredPairing:a,and:g}=u(s,O);let h="";return l&&(h=p+" "),h+=E(c,a,g),f&&(h+=" point "+function(e,n){let t="",r=0;for(;r<e.length&&"0"===e[r];)t&&(t+=" "),t+=b,r++;const i=e.slice(r);return i&&(t&&(t+=" "),t+=E(BigInt(i),!1,n)),t}(f,g)),h}function R(e){const n=e%10,t=Math.trunc(e/10)%10,r=Math.trunc(e/100);let i="";return 1===t?i=v[n]:t>=2?i=n>0?f[t]+"-"+m[n]:y[t]:n>0&&(i=m[n]),r>0?i?l[r]+" "+w+" "+i:l[r]+" hundredth":i}function B(n){const r=function(n){const r=typeof n;if("bigint"==typeof n){if(n<=0n)throw new RangeError("Ordinals must be positive integers");return n}if("number"==typeof n){if(!Number.isFinite(n))throw new RangeError("Ordinals must be finite numbers");if(!Number.isInteger(n))throw new RangeError("Ordinals must be whole numbers");if(n<=0)throw new RangeError("Ordinals must be positive integers");return BigInt(n)}if("string"==typeof n)return function(n){const r=n.trim();if(0===r.length)throw new RangeError("Ordinals cannot be empty strings");if("-"===r[0])throw new RangeError("Ordinals cannot be negative");if(r.includes("."))throw new RangeError("Ordinals must be whole numbers");if(t(r)){const n=e(r);if(n.includes("."))throw new RangeError("Ordinals must be whole numbers");const t=BigInt(n);if(t<=0n)throw new RangeError("Ordinals must be positive integers");return t}try{const e=BigInt(r);if(e<=0n)throw new RangeError("Ordinals must be positive integers");return e}catch(e){if(e instanceof RangeError)throw e;throw new RangeError(`Invalid ordinal format: "${n}"`,{cause:e})}}(n);throw new TypeError(`Invalid value type: expected number, string, or bigint, received ${r}`)}(n);return o(r,g),function(e){if(e<1000n)return R(Number(e));if(e<1000000n){const n=Number(e/1000n),t=Number(e%1000n);if(0===t)return I(n,!1).word+" "+a[0]+"th";const{word:r}=I(n,!1);return r+" "+a[0]+" "+R(t)}return function(e){const n=[];let t=e;for(;t>0n;)n.push(Number(t%1000n)),t/=1000n;let r=0;for(let e=0;e<n.length;e++)if(0!==n[e]){r=e;break}let i="";for(let e=n.length-1;e>=0;e--){const t=n[e];0!==t&&(i&&(i+=" "),e===r?i+=0===e?R(t):I(t,!1).word+" "+a[e-1]+"th":(i+=I(t,!1).word,e>0&&(i+=" "+a[e-1])))}return i}(e)}(r)}const $={and:!0};function P(e,t){const{isNegative:r,dollars:s,cents:l}=function(e){const t=typeof e;if("bigint"==typeof e)return e<0n?{isNegative:!0,dollars:-e,cents:0n}:{isNegative:!1,dollars:e,cents:0n};if("number"==typeof e){if(!Number.isFinite(e))throw new RangeError("Currency must be a finite number");return Number.isSafeInteger(e)?e<0?{isNegative:!0,dollars:BigInt(-e),cents:0n}:{isNegative:!1,dollars:BigInt(e),cents:0n}:i(n(e))}if("string"==typeof e)return i(e);throw new TypeError(`Invalid value type: expected number, string, or bigint, received ${t}`)}(e);o(s,h);const{and:c}=u(t,$);let f="";return r&&(f=p+" "),(s>0n||0n===l)&&(f+=E(s,!1,!1),f+=" "+(1n===s?"dollar":"dollars")),l>0n&&(s>0n&&(f+=c?" and ":" "),f+=E(l,!1,!1),f+=" "+(1n===l?"cent":"cents")),f}export{O as cardinalDefaults,d as cardinalMax,$ as currencyDefaults,h as currencyMax,g as ordinalMax,x as toCardinal,P as toCurrency,B as toOrdinal};