angular2
Version:
Angular 2 - a web framework for modern web apps
95 lines • 13.4 kB
JavaScript
export var NumberFormatStyle;
(function (NumberFormatStyle) {
NumberFormatStyle[NumberFormatStyle["Decimal"] = 0] = "Decimal";
NumberFormatStyle[NumberFormatStyle["Percent"] = 1] = "Percent";
NumberFormatStyle[NumberFormatStyle["Currency"] = 2] = "Currency";
})(NumberFormatStyle || (NumberFormatStyle = {}));
export class NumberFormatter {
static format(num, locale, style, { minimumIntegerDigits = 1, minimumFractionDigits = 0, maximumFractionDigits = 3, currency, currencyAsSymbol = false } = {}) {
var intlOptions = {
minimumIntegerDigits: minimumIntegerDigits,
minimumFractionDigits: minimumFractionDigits,
maximumFractionDigits: maximumFractionDigits
};
intlOptions.style = NumberFormatStyle[style].toLowerCase();
if (style == NumberFormatStyle.Currency) {
intlOptions.currency = currency;
intlOptions.currencyDisplay = currencyAsSymbol ? 'symbol' : 'code';
}
return new Intl.NumberFormat(locale, intlOptions).format(num);
}
}
function digitCondition(len) {
return len == 2 ? '2-digit' : 'numeric';
}
function nameCondition(len) {
return len < 4 ? 'short' : 'long';
}
function extractComponents(pattern) {
var ret = {};
var i = 0, j;
while (i < pattern.length) {
j = i;
while (j < pattern.length && pattern[j] == pattern[i])
j++;
let len = j - i;
switch (pattern[i]) {
case 'G':
ret.era = nameCondition(len);
break;
case 'y':
ret.year = digitCondition(len);
break;
case 'M':
if (len >= 3)
ret.month = nameCondition(len);
else
ret.month = digitCondition(len);
break;
case 'd':
ret.day = digitCondition(len);
break;
case 'E':
ret.weekday = nameCondition(len);
break;
case 'j':
ret.hour = digitCondition(len);
break;
case 'h':
ret.hour = digitCondition(len);
ret.hour12 = true;
break;
case 'H':
ret.hour = digitCondition(len);
ret.hour12 = false;
break;
case 'm':
ret.minute = digitCondition(len);
break;
case 's':
ret.second = digitCondition(len);
break;
case 'z':
ret.timeZoneName = 'long';
break;
case 'Z':
ret.timeZoneName = 'short';
break;
}
i = j;
}
return ret;
}
var dateFormatterCache = new Map();
export class DateFormatter {
static format(date, locale, pattern) {
var key = locale + pattern;
if (dateFormatterCache.has(key)) {
return dateFormatterCache.get(key).format(date);
}
var formatter = new Intl.DateTimeFormat(locale, extractComponents(pattern));
dateFormatterCache.set(key, formatter);
return formatter.format(date);
}
}
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Modified version of internal Typescript intl.d.ts.\n// TODO(piloopin): remove when https://github.com/Microsoft/TypeScript/issues/3521 is shipped.\ndeclare module Intl {\n  interface NumberFormatOptions {\n    localeMatcher?: string;\n    style?: string;\n    currency?: string;\n    currencyDisplay?: string;\n    useGrouping?: boolean;\n    minimumIntegerDigits?: number;\n    minimumFractionDigits?: number;\n    maximumFractionDigits?: number;\n  }\n\n  interface NumberFormat {\n    format(value: number): string;\n  }\n\n  var NumberFormat: {new (locale?: string, options?: NumberFormatOptions): NumberFormat};\n\n  interface DateTimeFormatOptions {\n    localeMatcher?: string;\n    weekday?: string;\n    era?: string;\n    year?: string;\n    month?: string;\n    day?: string;\n    hour?: string;\n    minute?: string;\n    second?: string;\n    timeZoneName?: string;\n    formatMatcher?: string;\n    hour12?: boolean;\n  }\n\n  interface DateTimeFormat {\n    format(date?: Date | number): string;\n  }\n\n  var DateTimeFormat: {new (locale?: string, options?: DateTimeFormatOptions): DateTimeFormat};\n}\n\nexport enum NumberFormatStyle {\n  Decimal,\n  Percent,\n  Currency\n}\n\nexport class NumberFormatter {\n  static format(num: number, locale: string, style: NumberFormatStyle,\n                {minimumIntegerDigits = 1, minimumFractionDigits = 0, maximumFractionDigits = 3,\n                 currency, currencyAsSymbol = false}: {\n                  minimumIntegerDigits?: number,\n                  minimumFractionDigits?: number,\n                  maximumFractionDigits?: number,\n                  currency?: string,\n                  currencyAsSymbol?: boolean\n                } = {}): string {\n    var intlOptions: Intl.NumberFormatOptions = {\n      minimumIntegerDigits: minimumIntegerDigits,\n      minimumFractionDigits: minimumFractionDigits,\n      maximumFractionDigits: maximumFractionDigits\n    };\n    intlOptions.style = NumberFormatStyle[style].toLowerCase();\n    if (style == NumberFormatStyle.Currency) {\n      intlOptions.currency = currency;\n      intlOptions.currencyDisplay = currencyAsSymbol ? 'symbol' : 'code';\n    }\n    return new Intl.NumberFormat(locale, intlOptions).format(num);\n  }\n}\n\nfunction digitCondition(len: number): string {\n  return len == 2 ? '2-digit' : 'numeric';\n}\nfunction nameCondition(len: number): string {\n  return len < 4 ? 'short' : 'long';\n}\nfunction extractComponents(pattern: string): Intl.DateTimeFormatOptions {\n  var ret: Intl.DateTimeFormatOptions = {};\n  var i = 0, j;\n  while (i < pattern.length) {\n    j = i;\n    while (j < pattern.length && pattern[j] == pattern[i]) j++;\n    let len = j - i;\n    switch (pattern[i]) {\n      case 'G':\n        ret.era = nameCondition(len);\n        break;\n      case 'y':\n        ret.year = digitCondition(len);\n        break;\n      case 'M':\n        if (len >= 3)\n          ret.month = nameCondition(len);\n        else\n          ret.month = digitCondition(len);\n        break;\n      case 'd':\n        ret.day = digitCondition(len);\n        break;\n      case 'E':\n        ret.weekday = nameCondition(len);\n        break;\n      case 'j':\n        ret.hour = digitCondition(len);\n        break;\n      case 'h':\n        ret.hour = digitCondition(len);\n        ret.hour12 = true;\n        break;\n      case 'H':\n        ret.hour = digitCondition(len);\n        ret.hour12 = false;\n        break;\n      case 'm':\n        ret.minute = digitCondition(len);\n        break;\n      case 's':\n        ret.second = digitCondition(len);\n        break;\n      case 'z':\n        ret.timeZoneName = 'long';\n        break;\n      case 'Z':\n        ret.timeZoneName = 'short';\n        break;\n    }\n    i = j;\n  }\n  return ret;\n}\n\nvar dateFormatterCache: Map<string, Intl.DateTimeFormat> = new Map<string, Intl.DateTimeFormat>();\n\nexport class DateFormatter {\n  static format(date: Date, locale: string, pattern: string): string {\n    var key = locale + pattern;\n    if (dateFormatterCache.has(key)) {\n      return dateFormatterCache.get(key).format(date);\n    }\n    var formatter = new Intl.DateTimeFormat(locale, extractComponents(pattern));\n    dateFormatterCache.set(key, formatter);\n    return formatter.format(date);\n  }\n}\n"]}