I want to display a time string in 24 hour format and thought it would be easy in TypeScript. But I can't use the Date.toLocaleTimeString() with options for some reason. Any idea why? They are defined in a separate interface definition.
interface Date {
toLocaleString(locales?: string[], options?: Intl.DateTimeFormatOptions): string;
toLocaleString(locale?: string, options?: Intl.DateTimeFormatOptions): string;
}
The other option is to use Intl.DateTimeFormat but the constructors return a Collator?
var DateTimeFormat: {
new (locales?: string[], options?: DateTimeFormatOptions): Collator;
new (locale?: string, options?: DateTimeFormatOptions): Collator;
(locales?: string[], options?: DateTimeFormatOptions): Collator;
Is it a copy paste bug in lib.d.ts (same for NumberFormat) or how am I supposed to use them?
Hopefully it's an easy fix, I'm pretty new to TypeScript so I might have missed something.
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typescript
This should work...
var displayDate = new Date().toLocaleDateString();
alert(displayDate);
But I suspect you are trying it on something else, for example:
var displayDate = Date.now.toLocaleDateString(); // No!
alert(displayDate);
Source: Stackoverflow.com