1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
|
//// [es2020IntlAPIs.ts]
// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Intl#Locale_identification_and_negotiation
const count = 26254.39;
const date = new Date("2012-05-24");
function log(locale: string) {
console.log(
`${new Intl.DateTimeFormat(locale).format(date)} ${new Intl.NumberFormat(locale).format(count)}`
);
}
log("en-US");
// expected output: 5/24/2012 26,254.39
log("de-DE");
// expected output: 24.5.2012 26.254,39
// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Intl/RelativeTimeFormat
const rtf1 = new Intl.RelativeTimeFormat('en', { style: 'narrow' });
console.log(rtf1.format(3, 'quarter'));
//expected output: "in 3 qtrs."
console.log(rtf1.format(-1, 'day'));
//expected output: "1 day ago"
const rtf2 = new Intl.RelativeTimeFormat('es', { numeric: 'auto' });
console.log(rtf2.format(2, 'day'));
//expected output: "pasado mañana"
// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Intl/DisplayNames
const regionNamesInEnglish = new Intl.DisplayNames(['en'], { type: 'region' });
const regionNamesInTraditionalChinese = new Intl.DisplayNames(['zh-Hant'], { type: 'region' });
console.log(regionNamesInEnglish.of('US'));
// expected output: "United States"
console.log(regionNamesInTraditionalChinese.of('US'));
// expected output: "美國"
const locales1 = ['ban', 'id-u-co-pinyin', 'de-ID'];
const options1 = { localeMatcher: 'lookup' } as const;
console.log(Intl.DisplayNames.supportedLocalesOf(locales1, options1).join(', '));
new Intl.Locale(); // should error
new Intl.Locale(new Intl.Locale('en-US'));
new Intl.DisplayNames(); // TypeError: invalid_argument
new Intl.DisplayNames('en'); // TypeError: invalid_argument
new Intl.DisplayNames('en', {}); // TypeError: invalid_argument
console.log((new Intl.DisplayNames(undefined, {type: 'language'})).of('en-GB')); // "British English"
const localesArg = ["es-ES", new Intl.Locale("en-US")];
console.log((new Intl.DisplayNames(localesArg, {type: 'language'})).resolvedOptions().locale); // "es-ES"
console.log(Intl.DisplayNames.supportedLocalesOf(localesArg)); // ["es-ES", "en-US"]
console.log(Intl.DisplayNames.supportedLocalesOf()); // []
console.log(Intl.DisplayNames.supportedLocalesOf(localesArg, {})); // ["es-ES", "en-US"]
//// [es2020IntlAPIs.js]
// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Intl#Locale_identification_and_negotiation
const count = 26254.39;
const date = new Date("2012-05-24");
function log(locale) {
console.log(`${new Intl.DateTimeFormat(locale).format(date)} ${new Intl.NumberFormat(locale).format(count)}`);
}
log("en-US");
// expected output: 5/24/2012 26,254.39
log("de-DE");
// expected output: 24.5.2012 26.254,39
// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Intl/RelativeTimeFormat
const rtf1 = new Intl.RelativeTimeFormat('en', { style: 'narrow' });
console.log(rtf1.format(3, 'quarter'));
//expected output: "in 3 qtrs."
console.log(rtf1.format(-1, 'day'));
//expected output: "1 day ago"
const rtf2 = new Intl.RelativeTimeFormat('es', { numeric: 'auto' });
console.log(rtf2.format(2, 'day'));
//expected output: "pasado mañana"
// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Intl/DisplayNames
const regionNamesInEnglish = new Intl.DisplayNames(['en'], { type: 'region' });
const regionNamesInTraditionalChinese = new Intl.DisplayNames(['zh-Hant'], { type: 'region' });
console.log(regionNamesInEnglish.of('US'));
// expected output: "United States"
console.log(regionNamesInTraditionalChinese.of('US'));
// expected output: "美國"
const locales1 = ['ban', 'id-u-co-pinyin', 'de-ID'];
const options1 = { localeMatcher: 'lookup' };
console.log(Intl.DisplayNames.supportedLocalesOf(locales1, options1).join(', '));
new Intl.Locale(); // should error
new Intl.Locale(new Intl.Locale('en-US'));
new Intl.DisplayNames(); // TypeError: invalid_argument
new Intl.DisplayNames('en'); // TypeError: invalid_argument
new Intl.DisplayNames('en', {}); // TypeError: invalid_argument
console.log((new Intl.DisplayNames(undefined, { type: 'language' })).of('en-GB')); // "British English"
const localesArg = ["es-ES", new Intl.Locale("en-US")];
console.log((new Intl.DisplayNames(localesArg, { type: 'language' })).resolvedOptions().locale); // "es-ES"
console.log(Intl.DisplayNames.supportedLocalesOf(localesArg)); // ["es-ES", "en-US"]
console.log(Intl.DisplayNames.supportedLocalesOf()); // []
console.log(Intl.DisplayNames.supportedLocalesOf(localesArg, {})); // ["es-ES", "en-US"]
|
